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Brown Smooth-hound
The brown smooth-hound (''Mustelus henlei'') is a houndshark of the Family (biology), family Houndshark, Triakidae. The reproduction of this shark is viviparous. The brown smooth-hound reaches a maximum reported size of 95.0 cm and a minimum of 27.6cm amongst males while females can range from 25.7 cm to 100 cm although males reach their asymptotic length sooner than females. The average size of this species is between 50 and 70 cm and is between 19 and 21 cm at birth. Females at maternity are around 67.6 cm long whereas the average length at maturity is 63.6 cm for males and 65.6 cm for females. This species is a ground shark and has a heterocercal caudal fin bearing an elongate upper lobe, triangular and broad dorsal fins, broad pectoral fins, an inferior mouth, and large eyes, and displays a reddish or bronze coloration from above and a silverish coloration on the underside. The shark is additionally slender, long-snouted, and sharp-toothed. The teeth of the brown smooth-hound o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Theodore Gill
Theodore Nicholas Gill (March 21, 1837 – September 25, 1914) was an American ichthyologist, mammalogist, malacologist, and librarian. Career Born and educated in New York City under private tutors, Gill early showed interest in natural history. He was associated with J. Carson Brevoort in the arrangement of the latter's entomological and ichthyological collections before going to Washington, DC, in 1863 to work at the Smithsonian Institution. He catalogued mammals, fishes, and mollusks most particularly, although he maintained proficiency in other orders of animals. He was librarian at the Smithsonian and also senior assistant to the Library of Congress. He was elected as a member of the American Philosophical Society in 1867. Gill was professor of zoology at George Washington University. He was also a member of the Megatherium Club at the Smithsonian Institution in Washington, DC. Fellow members frequently mocked him for his vanity. He was president of the American Asso ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
