. Bulletin - United States National Museum. Science. 9g BULLETIN 166, UNITED STATES NATIONAL MUSEUM CYMONOMUS QUADRATUS A. Milne Edwards Figure 23; Plate 30, Figure 3; Plate 31, Figure 3 Cymonomiis quadralus A. Milne Edwards, Bull. Mus. Comp. Zool., vol. 8, p. 26, 1880 (tj'pe localities, from Havana to Grenada, 175-508 fathoms; cotypes in M. C. Z.).—Bouvier, Bull. Soc. Philom. Paris, ser. 8, vol. 9, p. 66 [13], 1898.—A. Milne Edwards and Bouvier, Mem. Mus. Comp. Zool., vol. 27, p. 81, pi. 16, 1902.—Lankester, Quart. Journ. Micr. Soc, new ser., vol. 47, pp. 448, 453, fig. 10 (upper), 1903. Diag
. Bulletin - United States National Museum. Science. 9g BULLETIN 166, UNITED STATES NATIONAL MUSEUM CYMONOMUS QUADRATUS A. Milne Edwards Figure 23; Plate 30, Figure 3; Plate 31, Figure 3 Cymonomiis quadralus A. Milne Edwards, Bull. Mus. Comp. Zool., vol. 8, p. 26, 1880 (tj'pe localities, from Havana to Grenada, 175-508 fathoms; cotypes in M. C. Z.).—Bouvier, Bull. Soc. Philom. Paris, ser. 8, vol. 9, p. 66 [13], 1898.—A. Milne Edwards and Bouvier, Mem. Mus. Comp. Zool., vol. 27, p. 81, pi. 16, 1902.—Lankester, Quart. Journ. Micr. Soc, new ser., vol. 47, pp. 448, 453, fig. 10 (upper), 1903. Diagnosis.—Carapace squarish, rostrum linear, eyestalks long, without cornea. Merus of outer maxilliped elongate, the palp attached at middle of inner Figure 2Z.—Cymonomus guadratus, male (68094): Outline of carapace, X 3. Description.—Surface finely granulate. Anterolateral borders of carapace almost on the same transverse line as the facial region, which is very narrow. Rostrum slender and pointed, shorter than eyestalks; the latter are partially movable and denticulate on inner border; they do not reach the tip of the antepenult article of antennal pedun- cle. Antennules stout, the peduncle about two-thirds as long as carapace. Antennae shorter and slenderer; the peduncle does not reach beyond the penult article of the antennules; subantennal tooth visible in dorsal view. Anterolateral margins armed with some small spines, posterolateral unarmed and parallel; posterior margin broad. Chehpeds short, granulate; two spinules on inner margin of carpus; fingers as long as palm. Ambulatory legs of first two pairs smooth. Measurements.—Female (6921), length of carapace to tip of rostrum , width mm. Range.—Gulf of Mexico to Lesser Antilles; 101 to 508 fathoms. Material examined.—See table 30, page 97. Genus CYMOPOLUS A. Milne Edwards Cymopolus A. Milne Edwards, Bull. Mus. Comp. Zool., vol. 8, p. 27, 1880 (type, C. asper A. Milne Edwards).—Bouvier, Bul
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