Genus Pyromaia Stimpson, 1871 



Rathbun, 1925, p. 127. 



Pyromaia cuspidata Stimpson 



Figures 216, 223E 



Pyromaia cuspidata Stimpson, 1871a, p. 110. — Hay and Shore, 

 1918, p. 455, pi. 38, fig. 4. — Rathbun, 1925, p. 129, text-flg. 49 ; 

 pi. 41 (rev.). 



Recognition characters. — Adult male. Carapace 

 pyriform, approximately two-thirds as wide as 

 long; regions well marked, tumid, rough, with 

 scattered granules, sharp tubercles and spines; 

 often six large median spines (two nasogastric, 

 one urogastric, two cardiac, one intestinal), else- 

 where one protogastric, two or three hepatic, re- 

 mainder branchial. Depressions separating bran- 

 chial regions from other regions somewhat pitted. 

 Rostrum tapering to a point, trigonal ; upper and 

 lateral margins spinulose. Interantennular spine 

 acute, triangular, pointing downward and for- 

 ward. Orbits large, open; supraorbital spine al- 

 most erect, directed slightly outward and for- 

 ward; postorbital tooth large, curved around end 

 of eye; anterior margin fringed with hair. Basal 

 article of antenna long, with terminal spine, a 

 larger spine at middle of inner margin and a small 

 one at middle of outer margin followed by row of 

 tubercles or spinules. A tubercle at angle of buccal 

 cavity. Outer maxilliped spinulose, a longitudinal 

 depression on ischium, merus cordate. 



Limbs covered with short fur, surface under- 

 neath roughened with sharp granules or spines; 



Figure 216. — Pyromaia cuspidata Stimpson. Male in dor- 

 sal view, legs of left side not shown, 10 mm. indi- 

 cated. 



merus of cheliped armed on margins, terminal 

 spine of upper margin longest; upper margin of 

 carpus spinulose with a few spines on outer sur- 

 face; hand inflated, fingers bare, grooved, slightly 

 agape at base. Walking legs spinulose; meri with 

 distal spine; first legs longest, remainder succes- 

 sively shorter. 



First abdominal segment long, with an acute 

 backward-pointing spine; six free segments, last 

 two fused. 



Adult female. Limbs almost bare; chelipeds not 

 much stronger than walking legs, dactyl longer 

 than palm; legs shorter than in male. Five free, 

 abdominal segments, last three fused. 



Measurements. — Carapace: male, length, 41 

 mm. ; width, 32 mm. 



Variations. — The young have pubescence re- 

 sembling that in females, the postorbital tooth 

 smaller than in adults, slender and directed out- 

 ward in small specimens (7.5 mm. long), directed 

 outward and forward in somewhat larger forms. 



Color. — Immature individuals brown, legs with 

 lighter crossbands. 



Habitat. — This species has been taken on gray 

 mud, sand, pebble, and broken-coral bottoms; 15 

 to 300 fathoms. 



Type localities. — Off Sand Key, 82 fathoms; 

 Alligator Reef, 88 fathoms; the Samboes, 93 and 

 121 fathoms; southwest of Sand Key, 125 fathoms 

 [Florida]. 



Known range. — Off Cape Lookout, X.C., to west 

 Florida ; Yucatan Channel ; Cuba. 



Remarks. — U.S. National Museum records show 

 ovigerous females off Florida in February and 

 July. 



Genus Anasimus Milne Edwards, 1880 



Rathbun, 1925, p. 64. 



Anasimus latus Rathbun 



Figures 217, 223F 



Anasimut latus Rathbun, 1894, p. 58. — 1925, p. 65, pi. 214 

 (rev.). 



Recognition characters. — Carapace broadly 

 ovate, elevated on median line, posterior half 

 semicircular, anterior half broadly triangular, 

 surface covered with unequal granules. Carapace 

 with median row of spines, two gastric (posterior 

 one larger), one large cardiac, one small back- 

 ward-pointing intestinal, and a long acuminate 

 backward-projecting spine at distal end of first 



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