Jh. Leal et Mg. Harasewych, Deepest Atlantic molluscs: hadal limpets (Mollusca, Gastropoda, Cocculiniformia) from the northern boundary of the Caribbean Plate, INVERTEBR B, 118(2), 1999, pp. 116-136
Descriptions and scanning electron micrographs of the shell, protoconch, ra
dula, and gross external anatomy are provided for four species of cocculini
form limpets collected from hadal depths of the Cayman and Puerto Rico tren
ches. Of these, one represents a new genus and species, Macleaniella moskal
evi (Cocculinidae), endemic to the Puerto Rico Trench. Another, Amphiplica
plutonica (Pseudococculinidae), represents a new species from the Cayman Tr
ench of a globally distributed abyssal genus. The original descriptions of
the remaining two species, Fedikovella caymanensis (Cocculinidae) and Cayma
nabyssia spina (Pseudococculinidae), both from the Cayman Trench and type s
pecies of their respective genera, contained only poorly reproduced illustr
ations of portions of the shells, and line drawings of isolated rows of rad
ular teeth. These four species, each apparently endemic to their respective
trenches, represent the deepest records of molluscs collected in the Atlan
tic Ocean.