520 



BULLETIN 152, UNITED STATES NATIONAL MUSEUM 



posed in nodules or areoles corresponding largely to the regions and 

 subregions; a median gastric furrow extends nearly to posterior end 

 of region; a tuft of coarse tubular hairs on each protogastric and 

 epibranchial lobe and eight single or double similar hairs regularly 

 disposed on the carapace and one on each eyestalk. When the 

 pubescence is removed numerous small tubercles are exposed. Front 

 with two oblique entire lobes, no outer lobules or angulations, a large 

 median V-sinus. Antennal flagellum as long as width of front. 

 Upper margin of orbit interrupted by two well marked sinuses; 

 outer tooth small; lower margin granulate, a large acute inner tooth. 

 Antero-lateral margin with three broad, thick teeth with tuberculi- 

 form tips. In the long interval between them and the orbital tooth 

 a subhepatic tubercle is visible. Carpus and manus of chelipeds 

 with a covering similar to that of the carapace. Carpus and manus 



Figure 81.— Pilumntjs holoseeicus, male, dorsal view showing tubercles 

 on right half of carapace, x3 



of chelipeds with a covering similar to that of the carapace, except- 

 ing that the lower distal end (half or less than half) of the major 

 manus is bare and smooth; tubercles small and numerous and plainly 

 visible embedded in the felt. Fingers relatively short and stout. 

 Ambulatory legs covered with a very short velvet and margined 

 with numerous coarse tubular hairs. 



Color. — Hands pink, the pink of the tubercles persisting for many 

 years in preserved specimens. 



Measurements. — Male (24377), entire length of carapace 7.3, entire 

 width of same 9.2, fronto-orbital width 6.6, width of front 3.1 mm. 



Range. — Tortugas, Bahamas, and Porto Rico to Trinidad and 

 Curagao. 



Material examined. — Tortugas, Florida; 1924; W. L. Schmitt; gift 

 of Carnegie Institution: Rocks on east side of Loggerhead Key; 

 July 28; 1 male, 1 ovigerous female (60947). Middle section of Bird 

 Key reef; July 26; 1 ovigerous female (60948). 



