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Range: north coast of Cuba; Puerto Rico, Curasao.<br />
Depth: 8 to 22 m (4.5 to 12 fm).<br />
Habitat: mud bottoms.<br />
Thalassoplax Guinot, 1969<br />
Crabs of the Gulf of Mexico 117<br />
Thalassoplax angusla Guinot, 1969 (Bull. Mus. Nation. Hist. Nat. 41: 717)<br />
As Pilumnoplax elala in Rathbun (not A. Milne Edwards)—Rathbun, 1918, p. 23<br />
(part, female and juveniles, includes female on pi. 3).<br />
As Thalassoplax angusla—Guinot, 1969a, p. 717, figs. 131-132, pi. IV, fig. 2;<br />
Pequegnat, 1970, p. 192.<br />
Range: east coast of Florida; off northwest Florida, Alabama and Mississippi;<br />
off east coast of Mexico; off Campeche, Yucatan.<br />
Depth: 183 to 752m (100 to411 fm).<br />
Habitat: mud, sand, broken shell bottoms.<br />
Remarks: Pequegnat (1970) added several new records for the Gulf of Mexico<br />
and also commented on differences in morphological descriptions between the<br />
Alaminos specimens and that provided \)y Guinot (1969a, p. 717). The legends<br />
on Guinot's plates were transposed; the correct citations appear above and in<br />
Pequegnat (1970, p. 192). As previously discussed for Robertsella rnystica,<br />
Rathbun's (1918, p. 23) description of Pilumnoplax elata does not conform to the<br />
type description of this species provided by A. Milne Edwards; thus all of the<br />
material included in Rathbun was transferred to new species and genera by<br />
Guinot (1969). Thalassoplax angusta includes the females and juveniles described<br />
by Rathbun, but not the mature male nor the original female holotjqDe<br />
of P. elala.<br />
Trapesioplax Guinot, 1969<br />
Trapesioplax Iridenlala (A. Milne Edwards, 1880) (Bui. Mus. Comp. Zool. 8:<br />
16)<br />
As Goneplax Iridenlala—Rathbun, 1918, p. 29.<br />
As Prionoplax allanlica—Rathbun, 1918, p. 30, text-fig. 8, pi. 6, figs. 1-2.<br />
As Trapezioplax Iridenlala—Guinot, 1969a, p. 713, figs. 128-129,142.<br />
Range: Florida Keys and Dry Tortugas; west coast of Florida; Barbados.<br />
Depth: 13 to42 m (7to23fm).<br />
Habitat: sand, coral, shell, and mud bottoms.<br />
Remarks: Guinot (1969a) established this new genus based on a separation<br />
of Frevillea tridentata from the other species of Frevillea. Trapezioplax tridentata<br />
includes the original type, Goneplax tridentata, and Prionoplax atlantica, listed<br />
as separate species by Rathbun (1918).<br />
Family PALICIDAE Bouvier, 1898 (= CYMOPOLIDAE Faxon, 1895)<br />
PaKcMs Philippi, 1838<br />
Palicus affinis A. Milne Edwards & Bouvier, 1899 (Bull. Mus. Hist. Nat. Paris<br />
5: 122)