1894. 



PROCEEDINGS OF THE NATIONAL MUSEUM. 523 



Locality. — Tbere is in the collection a siugle female from Borneo, i)iir- 

 chased of H. A. Ward, No. IsrAli. IT.S.XJI. 



SQUILL4 ACl'LEATA, 1! i .<;■ e 1 (. w. 

 Sqnilla (HiihatK, P>i(iKi.i»w, .loliiiy lloiikiiis T'uiv. Circ, lOl!, ]>. Mil, 189.". 



Diaf/nonis. — A species liaviuy; small but triaiij;ular eves, i^lie corneal 

 axis not exceedinii' the i)e(luncular and nearly transverse; the dactj'li 

 of the raptorial claws very stron^ii', with six teeth; a broad rostrum 

 provided with median and lateral carina'; five carina' ni)on tlie cara- 

 pace, the lateral ones i)assin,!4- into the anterior lateral spines, and the 

 posterior lateral margins angled; the lateral processes of the lirst 

 exposed thoracic segment curved Ibrward and acute, of the second and 

 third acuminate; submediaii carina' i)resent on all the segments of the 

 hind body except the tirst exposed thoracic, but not ending- in spines 

 except on the sixth abdominal, all the other carina^, ending in spines 

 on the third, fourth, and fifth segments, and the lateral ones on the 

 first and second ; in the inale a thickened crest on the telson ending la 

 asmallspine, the surface of the telson on each side marked with curved 

 lines of i)its, six marginal spines, of which the submedian and iu.terme- 

 diate are very large and curved, and, like the lateral ones, have thick- 

 ened basal carina', and between these three to four subnx'dian teeth, five 

 to seven intermediate, and one lateral tooth, no trace oi'a. ventral keel; 

 the inner spine on the basal prolongation of the uropod much longer 

 than the outer and with a ronnded lobe on the outer side near its base. 



General (lescripHon. — At first sight this species appears to by identi- 

 cal with 8. empuHa except for its smaller eyes and the heightened topog- 

 raphy of its telson, l)ut a <'areful comparison of the specimens reveals 

 many minor points of difCcrenc.'. I shall base the following (b'scription 

 upon a large male specimen from Chile and afterward compare with it 

 a small female from Panama. 



The bod}' is strongly and compactly \n\t together. Tlie carapace is 

 nearly 0.22 of the total length of the body and 0.97 of tiie greatest 

 width of the abdomen . The width of the cara|)ace is about 

 0.83 of its length. The telson takes up 0.17 of the total 

 length of the animal, and its width at the base is 1.00 times 

 its length. 



Theeyes(fig. 15)arestrii<ingly small, their width (length 

 of the corneal axis) being 0.().')3 of the length of the body, 

 but this is very nearly eciual to the length of the pedun- 

 cular axis, and the eye is flattened in the usual way and iigio. 

 is subtriangular. The oidithalmic segment is rounded and eveok 



^ '^ " SQUILLA 



entire in front, and the processes at the bases of the eyes aculeata. 



are short and rounded. The processes on the antennary Twuemi„,„i 



segment are also rounded. The first antenna' appear to be 

 about two-fifths the length of the body, wliile the second pair reach to 

 the end of the third joints of tlie first pair. The antennary scales are 



