THE SPIDER CRABS OF AMERICA 21 



beyond the cornea. A postorbital tubercle present. Basal article 

 of antenna slender; movable portion elongate, visible from above on 

 either side of rostrum. Epistome large. Maxillipcds similar to 

 those of StenoryncJius. Abdomen of male with the last two segments 

 not completely coalesced; last three segments of female coalesced. 

 Chelipeds of moderate length, stout in male. Fingers as long as 

 palm and slightly gaping in male, shorter than palm and widely 

 gaping in female. Ambulatory legs extremely long and slender, the 

 middle of the three distal spines of the merus much elongated. 

 Contains only one species. 



METOPORHAPHIS CAI.CARATA (Say) 



Plates 6 and 7 



Leptopodia calcarata Say, Journ. Acad. Nat. Sci. Philadelphia, vol. 1, pt. 2, 



1818, p. 455 (type-locality, Bay of Charleston, South Carolina; type 



not extant '*) . 

 Metoporhaphis calcarata Stimpson, Ann. Lye. Nat. Hist. New York, vol. 7, 



1860, p. 198 [70].— KiNGSLEY, Proc. Acad. Nat. Sci. Philadelphia, 1878, 



p. 316 [11. 

 Metoporhaphis calcaratus A. Milne Edwards, Crust. Reg. Mex., 1878, 



p. 174.— Smith, Rept. U. S. Fish Commr. for 1885 (1886), p. 620.— 



Rathbun, Proc. U. S. Nat. Mus., vol. 17, 1894, p. 45. — Hay and Shore, 



Bull. Bur. Fisheries, vol. 35, 1915-16 (1918), p. 4.54, pi. 37, fig. 5. 

 Metoporhaphis forficulatus A. Milne Edwards, Crust. R6g. Mex., 1878, 



p. 174; 1879, pi. 31, figs. 3-3e (type-locality, Guiana; type in Paris Mus.). 

 Metoporaphis calcarata Miers, Journ. Linn. Soc. London, vol. 14, 1879, 



p. 643; Challenger Rept., Zool., vol. 17, 1886, p. 4. 

 Metoporaphis forficulatus Miers, Challenger Rept., Zool., vol. 17, 1886, p. 5. 

 Stenorhynchus longirostris? Goldi, Arch. f. Naturg., vol. 52, pt. 1, 1886, 



p. 41, pi. 3, figs. 32-36; not S. longirostris (Fabricius). 



Diagnosis. — Carapace uneven, tuberculate. Antennae visible in 

 dorsal view. A long spine at end of merus of ambulatory legs. A 

 spine on eye. 



Description. — Surface pubescent; long, marginal hairs on chelipeds. 

 Narrow neck longer in male than in female. Carapace nodulous, 

 each nodule surmounted by a tubercle and this in turn usually with 

 a pencil of soft, hooked hairs. Tubercles as follows: Four gastric, 

 of which tlu-ee are in a transverse row anteriorly; one large cardiac; 

 one postorbital, remote from orbit and slightly in advance of gastric 

 tubercles; two hepatic, one of which is marginal; three branchial, of 

 which one is marginal and the other two in a nearly longitudinal 

 row; a subbranchial tubercle in advance of marginal tubercle; a 

 tubercle on pterygostomian ridge, visible from above; a granule in 

 front of angle of buccal cavity. The rostrum is armed with four or 

 five slender spines which project outward alternately from opposite 

 sides of lower surface, and are not always apparent in small specimens; 



'< "AH that remains is the stomachal region with eyes and rostrum attached." (Oibbes, 1850.) 

 5487- 25t 4 



