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Black-backed Butterflyfish
The black-backed butterflyfish or blackback butterflyfish (''Chaetodon melannotus'') is a species of butterflyfish ( family Chaetodontidae). It is widespread through the Indo-Pacific area from the Red Sea and East Africa to Samoa, to southern Japan and throughout Micronesia. This fish grows up to 18 cm (ca. 7 in) long, and may live for up to 20 years. When observed at night or when frightened, this species changes color; the dorsal portion of the body turns black except for two white patches. It belongs to the large subgenus ''Rabdophorus'' which might warrant recognition as a distinct genus. In this group, it appears a close relative of the spot-tailed butterflyfish (''C. ocellicaudus'') and somewhat less close to the yellow-dotted butterflyfish (''C. selene''). These are all of oval shape, silvery with yellow fins and snout, ascending diagonal stripes, and black markings around the eyes, on the caudal peduncle, and sometimes on the back. Next closest seem the sadd ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Marcus Elieser Bloch
Marcus Elieser Bloch (1723–1799) was a German physician and naturalist who is best known for his contribution to ichthyology through his multi-volume catalog of plates illustrating the fishes of the world. Brought up in a Hebrew-speaking Jewish family, he learned German and Latin and studied anatomy before settling in Berlin as a physician. He amassed a large natural history collection, particularly of fish specimens. He is generally considered one of the most important ichthyology, ichthyologists of the 18th century, and wrote many papers on natural history, comparative anatomy, and physiology. Life Bloch was born at Ansbach in 1723 where his father was a Torah writer and his mother owned a small shop. Educated at home in Hebrew literature he became a private tutor in Hamburg for a Jewish surgeon. Here he learned German, Latin and anatomy. He then studied medicine in Berlin and received a doctorate in 1762 from Frankfurt (Oder), Frankfort on the Oder with a treatise on skin dis ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Spot-tailed Butterflyfish
The Spot-tailed Butterflyfish, ''Chaetodon ocellicaudus'', is a species of marine ray-finned fish, a butterflyfish belonging to the family Chaetodontidae. It is found in the central Indo- west Pacific region from Malaysia to New Guinea, north to the Philippines and Palau in Micronesia. It grows to a maximum of long. Nearly identical to the Black-backed Butterflyfish (''C. melannotus''), it differs only in the shape of the black mark on the caudal peduncle, in lacking a black mark on the chest, a lighter back, and in having an average of 14 rather than 15 pectoral fin rays. ''C. ocellicaudus'' belongs to the large subgenus ''Rabdophorus'' which might warrant recognition as a distinct genus. In this group, it appears to be a close relative of the Black-backed Butterflyfish and somewhat less close to the Yellow-dotted Butterflyfish (''C. selene''). These are all of oval shape, silvery with yellow fins and snout, ascending diagonal stripes, and black markings around the ey ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
