Deep-sea lobsters of the families Polychelidae and Nephropidae (Crustacea, Decapoda) in the Gulf of Mexico and Caribbean Sea

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Texas A & M University, Dept. of Oceanography, 1971 - Nature - 212 pages
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A preliminary report on the deep-sea lobsters of the families Polychelidae and Nephropidae with particular emphasis upon their occurrences in the Gulf of Mexico and central Caribbean Sea is presented. Taxonomic keys to species in both families are provided. Particularly in the case of the Polychelidae an evaluation is made of the relative importance of certain structural traits as taxonomical characters. Consideration is also given to the possibility of vertical breeding migrations in some species of Polycheles. The problem of 'hard' and 'soft' species of the genus Willemoesia is also examined. Some extensions of geographic and vertical range are noted. The maximum size ranges are also extended for several species. The problem of intergrades between Polycheles t. typhlops and Polycheles typhlops perarmatus is discussed thoroughly. The fact that no polychelid has been photographed by bottom cameras aboard the R/V Alaminos in areas where they are known to abound suggests something about their life habits. (Author).

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Contents

HISTORICAL SURVEY
5
REPRODUCTIVE BIOLOGY
9
ZOOGEOGRAFHIC AND DEPTH DISTRIBUTIONS OF THE POLYCHELIDAE
16

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