548 PROCEEDINGS OF THE NATIONAL MUSEUM. vol. 50. 



tubercles on the median line of the gastric region ; eight lateral gas- 

 tric tubercles, four of which are granulated; hinder part of cardiac 

 region produced upward in a long, spadelike spine, compressed 

 antero-posteriorly ; seven small cardiac tubercles; a large, flat, trian- 

 gular, erect tubercle or elevation, and three small tubercles on the 

 intestinal region; on the hinder part of the branchial region three 

 strong spines on each side, of which one is at the lateral angle, one 

 above that point, and one near the cardiac region; many branchial 

 tubercles; one hepatic tubercle, which on the right side is split in two; 

 one tubercle on the anterior part of the subbranchial region and a 

 large bilobed pterj^gostomian tubercle. Eostrum strongly deflexed, 

 horns slender, widely divergent. Preorbital hood divided into two 

 subequal teeth, the anterior of which is upcurved but not at all ad- 

 vanced; orbital slit narrow; postocular cup large, produced out- 

 ward and forward to cover the end of the eye, ventral surface flat 

 and smooth. Basal segment of antenna armed with three large, 

 somewhat flattened, lobes or teeth, but outside the two anterior of 

 these lobes the segment is produced outward and obliquely upward 

 forming a partial floor to the orbit. 



Chelipeds of female weak, shorter than carapace. Legs of mod- 

 erate length, ornamented with stout unequal setse; dactyli long, very 

 slender, and very finely armed. 



Belationships. — In its roughness this species resembles H. oryx,^ 

 but it is much more uneven and of quite difi'erent shape. In the 

 lateral extension of the basal antennal segment, it shows a kinship 

 with H. ve7Tucosipes.^ The large, compressed, erect elevations of 

 cardiac and intestinal regions are unique. 



CHORILIA SPHENOCARCINOIDES, new species. 



Type-locality. — Between Xegros and Siquijor: Apo Island (C), 

 S. 26° W., 11.8 miles; lat. 9° 15' 45" K; long. 123° 22' 00'' E.; 279 

 fathoms; gn. M.; temperature 53.5° F.; Aug. 19, 1909; station 5536, 

 Albatross. 



Tlolofype.— Male. Cat. No. 48202, U.S.N.M. 



Measurements. — Length of carapace on median line, 15.6; esti- 

 mated length of rostral horns (the tips of both are broken off), 5.3; 

 width of carapace without spines, 10.7; with spines, 12.6. 



Carapace covered with pubescence, out of which emerge the larger 

 protuberances on the posterior part; one of these is transverse and 

 occupies the greater part of the intestinal region and a strip parallel 

 to the posterior margin; another covers the cardiac region; while 



1 A. Milne Edwards, Nouv. Arch. Mus. Hist. Nat., Paris, vol. 8, 1872, p. 250, pi. 14, 

 fig. 1. 



2 See Caiman, Trans. Linn. Soc. London, ser. 2, Zool., vol. 8, 1900, p. 36, pi. 2, figs. 

 23 and 24. 



