median V- or U-shaped notch; margins furnished 

 with short spines or sharp granules, with an outer 

 tooth separated from remainder of margin by a 

 U-shaped notch. 



Chelipeds unequal, spinose, and granulate ex- 

 cept for smooth and naked lower distal two-thirds 

 of outer surface of major palm, spines and gran- 

 ules not arranged in rows on upper part of major 

 palm; fingers of minor chela grooved on outside, 

 dactyls with rows of sharp granules and hairs at 

 base. Walking legs spinose above. 



Measurements. — Carapace: male, length, 11 

 mm.; width, 15 mm. 



Color. — Body and claws brownish-red color, 

 legs much lighter; fingers and extremities of 

 spines brown (Milne Edwards in Rathbun, 

 1930a). 



Habitat. — This species has been taken from 

 pilings, jetties, and buoys (Lunz, 1937a), and 

 from offshore reefs (Pearse and Williams, 1951) 

 in the Carolinas; and from similar situations 

 elsewhere (Rathbun, 1930a) including loggerhead 

 sponge Speciospongia vespara (Lamarck) 

 (Pearse, 1934). One-half to 16 fathoms. 



Type locality. — Key West, Fla. 



Known range. — Off Cape Hatteras, N.C., 

 through Gulf of Mexico and West Indies to State 

 of Santa Catarina, Brazil. 



Remarks. — This species is not so common in the 

 Carolinas as P. sayi, and small specimens of 

 dasypodus are not always easily distinguished 

 from sayi. Rathbun (1930a) stated that, "dasy- 

 podus is less heavily clothed with hair than sayi 

 and less ragged looking. The front is more de- 

 flexed and less advanced, therefore appears wider. 

 The spines and tubercles of the major palm in 

 sayi are arranged more or less in rows and these 

 rows have a tendency to encroach on the lower 

 distal half; in dasypodus there are seldom any 

 definite rows and the lower distal two-thirds or 

 one-half in both sexes is smooth and bare. The 

 immovable finger of the major chela in dasypodus 

 is a little longer than in sayi." 



Lunz (1937a) reported ovigerous females from 

 April through August in the Carolinas, and they 

 have been found in North Carolina in September. 

 In the West Indies they occur at all seasons of 

 the year (U.S. National Museum records). 



Pilumnus floridanus Stimpson 



Figures 157D, 160 



Pilumnus floridanus Stimpson, 1871a, p. 

 p. 507, pi. 205, figs. 3-4 (rev.). 



141. — Eathbun, 1930a, 



Figure 159. — Pilumnus dasypodus Kingsley. A, male in 

 dorsal view ; B, large chela in frontal view ; 5 mm. in- 

 dicated. 



Recognition characters. — Carapace covered 

 with dense, short pubescence thinning behind, 

 and with a few longer clavate hairs, a conspicuous 

 transverse series of these crossing frontal region. 

 Anterolateral margin with four somewhat conical 

 spines; a small subhepatic spine between outer 

 orbital and second spine; hepatic region slightly 

 roughened but with no spines. Frontal lobes al- 

 most bare, edge slightly oblique, entire, with 

 median triangular notch and rounded lateral 

 notches; tooth at outer angle minute, deflexed. 

 Orbital margin unarmed above, with 8 to 10 

 spinules below. 



Chelipeds spinose above ; merus with two spines 

 near distal end on upper surface; carpus armed 

 over entire exposed surface; spines on hand be- 

 coming pointed tubercles on outer surface. Male 

 with large hand smooth and bare on outer lower 

 half or less of surface, smooth portion more 

 restricted in female. Walking legs spined above. 



Measurements. — A small species. Carapace: 

 male, length, 7 mm.; width, 10 mm. 



MARINE DECAPOD CRUSTACEANS OF THE CAROLINAS 



179 



