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Cryptogemma
''Cryptogemma'' is a genus of sea snails, marine gastropod mollusks in the family Turridae, the turrids. Distribution These are deep-sea species with a wide geographic distribution. Species According to Zaccharias ''et al.'' (2020) this genus should only include: * '' Cryptogemma aethiopica'' (Thiele, 1925) * '' Cryptogemma periscelida'' (Dall, 1889) * '' Cryptogemma phymatias'' (Watson, 1886) * '' Cryptogemma powelli'' Zaharias, Kantor, Fedosov, Criscione, Hallan, Kano, Bardin & Puillandre, 2020 * '' Cryptogemma praesignis'' (Smith, 1895) * '' Cryptogemma tessellata'' (Powell, 1964) * '' Cryptogemma timorensis'' (Tesch, 1915) * ''Cryptogemma unilineata'' (Powell, 1964). The others should be excluded from this genus because the lack key characters such as the narrow fusiform shell and the well-marked peripheral anal sinus. They show closer resemblances to other conoidean families (such as Horaiclavidae) than to Turridae. Species within the genus ''Cryptogemma'' include (acco ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cryptogemma
''Cryptogemma'' is a genus of sea snails, marine gastropod mollusks in the family Turridae, the turrids. Distribution These are deep-sea species with a wide geographic distribution. Species According to Zaccharias ''et al.'' (2020) this genus should only include: * '' Cryptogemma aethiopica'' (Thiele, 1925) * '' Cryptogemma periscelida'' (Dall, 1889) * '' Cryptogemma phymatias'' (Watson, 1886) * '' Cryptogemma powelli'' Zaharias, Kantor, Fedosov, Criscione, Hallan, Kano, Bardin & Puillandre, 2020 * '' Cryptogemma praesignis'' (Smith, 1895) * '' Cryptogemma tessellata'' (Powell, 1964) * '' Cryptogemma timorensis'' (Tesch, 1915) * ''Cryptogemma unilineata'' (Powell, 1964). The others should be excluded from this genus because the lack key characters such as the narrow fusiform shell and the well-marked peripheral anal sinus. They show closer resemblances to other conoidean families (such as Horaiclavidae) than to Turridae. Species within the genus ''Cryptogemma'' include (acco ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cryptogemma Phymatias
''Cryptogemma phymatias'' is a species of sea snail, a marine gastropod mollusk in the family Turridae, the turrids. Description (Original description) The white rather high and narrow shell is thin. It is angulated and tubercled on the angle, spiralled, with a short round base, small snout, and openly constricted suture. Sculpture : Longitudinals—there are only harsh, irregular, unequal lines of growth. Spirals — the shell is rather broadly carinated in the middle of the whorls by three fine threads, which are united and made prominent by a series of narrow elongated tubercles. This is where the apex of the sinus occurs. The whole base and snout are scored with feeble threads, one of which, about half-way down the base, is a little more prominent than the rest. The shoulder of the shell above the keel has also some spiral threads, of which the one nearest the suture is also studded with small tubercles. The colour of the shell is greyish yellow. The spire is high and ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cryptogemma Praesignis
''Cryptogemma praesignis'' is a species of sea snail, a marine gastropod mollusk in the family Turridae, the turrids.MolluscaBase eds. (2020). MolluscaBase. Cryptogemma praesignis (E. A. Smith, 1895). Accessed through: World Register of Marine Species at: http://www.marinespecies.org/aphia.php?p=taxdetails&id=1425469 on 2020-03-25 Description The length of the shell attains 42 mm, its diameter 15 mm. (Original description by E.A. Smith) The prominent row of tubercles around the middle of the whorls, the keel beneath the suture, and the broad sinus in the outer lip are the principal features of this species. The apex of the spire being broken away makes it impossible to state with certainty the exact number of whorls, but they would probably amount to eleven or twelve. The entire surface exhibits fine flexuous lines of growth. (Original description by W.H. Dall) The solid shell contains six or more whorls (all the specimens are decollate). It is white, with an ashy p ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cryptogemma Timorensis
''Cryptogemma timorensis'' is a species of sea snail, a marine gastropod mollusk in the family Turridae, the turrids.MolluscaBase eds. (2020). MolluscaBase. Cryptogemma timorensis (Tesch, 1915). Accessed through: World Register of Marine Species at: http://www.marinespecies.org/aphia.php?p=taxdetails&id=1425508 on 2020-10-17 Distribution This marine species occurs off Timor Island Timor is an island at the southern end of Maritime Southeast Asia, in the north of the Timor Sea. The island is divided between the sovereign states of East Timor on the eastern part and Indonesia on the western part. The Indonesian part, also .... References * Tesch, P. (1915) Jungtertiäre und Quartäre Mollusken von Timor. Paläontologie von Timor, 5, 1–134, pls. 73–95. * Powell, A.W.B. (1964) The family Turridae in the Indo-Pacific. Part 1. The subfamily Turrinae. Indo-Pacific Mollusca, 1(5), 227–346. External links * Martin K. (1933). Eine neue tertiäre Molluskenfauna aus dem Indis ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cryptogemma Quentinensis
''Cryptogemma quentinensis'' is a species of sea snail in the family Turridae. Description The length of the shell attains 12 mm, its diameter 5 mm. (Original description) The small, solid shell is white under an olivaceous periostracum. It has five (decollate) whorls. The suture is distinct, bordered by a rounded ridge on each side. The surface is dull. The spiral sculpture consists of a prominent nodulous peripheral ridge which is the anal fasciole, with two smaller ridges in front of it with wider interspaces. In front of the first of these the suture is laid. The space between this and the second is more or less channeled, but these two ridges are not nodulous. In front of these four or five obscure threads appear on the siphonal canal The siphonal canal is an anatomical feature of the shells of certain groups of sea snails within the clade Neogastropoda. Some sea marine gastropods have a soft tubular anterior extension of the mantle called a siphon through which ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cryptogemma Polystephanus
''Cryptogemma polystephanus'' is a species of sea snail, a marine gastropod mollusk in the family Turridae, the turrids. Description The length of the shell attains 25 mm. (Original description) The shell of moderate size contains six or more whorls. The protoconch is eroded. The shell is white, with a cream-colored periostracum. The spiral sculpture consists numerous fine, subequal, flattisb threads with narrower interspaces, which cover the whole shell. To these are added a thickened ridge which borders the anterior margin of the suture, and on the spire a peripheral nodose keel, which is less marked on the body whorl, where it forms the shoulder.oO the penultimate whorl there are twenty of these nodules. Other axial sculpture is furnished by line, short, sharp elevated wrinkles which cross retractively the ridge adjacent to the suture, like the "gathers" of a skirt, and become obsolete on the fasciole. There are twenty-eight of these wrinkles on the margin of the penultimate ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cryptogemma Aethiopica
''Cryptogemma aethiopica'' is a species of sea snail, a marine gastropod mollusk in the family Turridae, the turrids.MolluscaBase eds. (2020). MolluscaBase. Cryptogemma aethiopica (Thiele, 1925). Accessed through: World Register of Marine Species at: http://www.marinespecies.org/aphia.php?p=taxdetails&id=1425516 on 2020-10-12 Description The length of the shell attains 42.2 mm, its diameter 16.9 mm. Distribution This species occurs in the Indian Ocean off Somalia and Madagascar; also in the Central Indo-Pacific at depths between 400 m to 850 m: in the South China Sea; off Sumatra Sumatra is one of the Sunda Islands of western Indonesia. It is the largest island that is fully within Indonesian territory, as well as the sixth-largest island in the world at 473,481 km2 (182,812 mi.2), not including adjacent i ..., Indonesia. References Thiele J. (1925). Gastropoden der Deutschen Tiefsee-Expedition. II Teil. Wissenschaftliche Ergebnisse der Deutschen Tief ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cryptogemma Chrysothemis
''Cryptogemma chrysothemis'' is a species of sea snail, a marine gastropod mollusk in the family Turridae, the turrids. Description The length of the (eroded) shell attains 16.5 mm, its diameter 7.5 mm. (Original description) The short-fusiform shell is white, with a pale olive periostracum. The tip is eroded. The shell contains six or more subsequent whorls. The suture is distinct. The anal sulcus is shallow and somewhat removed from the suture. The fascicle is narrow and depressed. The spiral sculpture consists of a low blunt peripheral keel, somewhat undulated on the earlier whorls with occasional traces of minor spiral threads. The entire surface is more or less obliquely granulose or minutely vermiculate. The axial sculpture consists only of feeble incremental lines .The outer lip is thin, sharp and produced. The inner lip is erased. The columella is short and obliquely attenuated in front. The siphonal canal is short, wide and not recurved. The axis is not pervious ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cryptogemma Powelli
''Cryptogemma powelli'' is a species of sea snail, a marine gastropod mollusk in the family Turridae, the turrids.MolluscaBase eds. (2020). MolluscaBase. Cryptogemma powelli Zaharias, Kantor, Fedosov, Criscione, Hallan, Kano, Bardin & Puillandre, 2020. Accessed through: World Register of Marine Species at: http://www.marinespecies.org/aphia.php?p=taxdetails&id=1425552 on 2020-10-16 Distribution This marine species occurs off New Caledonia ) , anthem = "" , image_map = New Caledonia on the globe (small islands magnified) (Polynesia centered).svg , map_alt = Location of New Caledonia , map_caption = Location of New Caledonia , mapsize = 290px , subdivision_type = Sovereign st ... References External links Zaharias P., Kantor Y.I., Fedosov A.E., Criscione F., Hallan A., Kano Y., Bardin J. & Puillandre N. (2020). Just the once will not hurt: DNA suggests species lumping over two oceans in deep-sea snails (Cryptogemma). Zoological Journal of the Linnean Society. DOI: 10.1 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cryptogemma Eldorana
''Cryptogemma eldorana'' is a species of sea snail, a marine gastropod mollusk in the family Turridae, the turrids. Description The length of three whorls attains 8 mm ; of the body whorl, 6 mm; of the aperture, 4 mm; maximum diameter 5 mm. (Original description) The small, solid, chalky shell has an olivaceous pcriostracum. It is decollate with about 4½ remaining whorls. The suture is obscure, with a narrow slightly elevated band in front of it, and on the body whorl a gradually developing similar band behind it. In front of the first band is a depression with two or three incised spiral lines, followed by a strong nodulous keel corresponding to the anal fasciole, in front of which again are (on the spire one, on the last whorl four) strong, simple, distant, spiral threads, of which the second is strongest and followed by the widest interval. The series is preceded by eight or ten smaller, closer, simple, spiral threads which extend to the end of the siphonal canal T ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cryptogemma Calypso
''Cryptogemma calypso'' is a species of sea snail, a marine gastropod mollusk in the family Turridae, the turrids. Description The (decollate) shell attains a length of 11 mm, its diameter 4.7 mm. (Original description) The shell is small with the protoconch eroded. It is whitish with a dark dull olivaceous periostracum and about five remaining whorls. The suture is appressed, with a broad smooth ridge in front of it and behind the excavated anal fasciole. The spiral sculpture in front of the shoulder consists of fine, even close-set equal threads, covering the surface, including the siphonal canal. The axial sculpture consists of feeble incremental lines arcuate on the fasciole and the antesutural ridge, also of narrow low sigmoid ribs beginning and forming a shoulder in front of the fasciole and obsolete in front of the periphery, differing in strength in different individuals and averaging fourteen on the body whorl. The anal sulcus is wide and deep, rounded The outer lip is ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cryptogemma Periscelida
''Cryptogemma periscelida'', common name the Atlantic gem turrid, is a species of sea snail, a marine gastropod mollusc in the family Turridae, the turrids.MolluscaBase eds. (2020). MolluscaBase. Cryptogemma periscelida (Dall, 1889). Accessed through: World Register of Marine Species at: http://www.marinespecies.org/aphia.php?p=taxdetails&id=1425549 on 2020-10-16 Description The length of the shell varies between 25 mm and 50 mm. (Original description by W.H. Dall) The stout shell has a fusiform shape. It is covered with a straw-colored epidermis. It is elaborately sculptured and contains 10 whorls, exclusive of the protoconch The spiral sculpture consists of: * (1) a cord at first rounded and irregularly constricted at short intervals, later flattened with numerous transverse waves and indentations. This band becomes gradually wider, has two small grooves along its center, and at the sides, especially the sutural side, it overhangs the channels on each side of it. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |