530 REPORT ON THE ORDER STOMATOPODA—BIGELOW. 



Color. — In alcoliolic specimens there is a line of dark pigment fol- 

 lowing both of the longitndiual sutures of the carapace and bordering- 

 its anterior margin, except the middle third. The posterior margin of 

 the carapace and of most of the exposed segments of the body are 

 marked each by a dark line. There is also a very dark triangular spot 

 on each side of the telson near the crest. Variety B has in addition a 

 large transverse dark spot oil the second and fifth abdominal segments 

 and faintly marked transverse bands on the carapace and other segments. 



Size. — The largest specimen measures 14 cm. in lengtli. 



LocaJi.fl/. — The specimens of the type-form, of which there are a large 

 number of both sexes and of various sizes, were all taken by the Alba- 

 tross in Panama Bay at a depth of between 20 and 47 fathoms {^oh. 

 18458-18460, U.S.N.M.). Of Varieti/ A about 20 specimens were taken 

 ott'CapeLobos, Mexico (Nos. 18461, 18462, U.S.is^.M.), 2 off Cousag Rock, 

 Lower California (Nos. 18465, 18466, U.S.N.M.), 5 oft' Diggs' Point, 

 (18467, U.S.N.M.), and 10 off Cape San Fermin (Nos. 18463, 18464, U.S. 

 ISr.M.). The de])th varied from 12 to 76 fathoms. Three females and 

 two young males of Variety B were taken in 29 fathoms of water at 

 station 3014 southeast of Tiburon Islaud, Mexico (No. 18468, U.S.N.M.). 

 A single male specimen of Variety C was captured oft' Cape Frio, Brazil, 

 in 59 ftithoms (No. 18469, U.S.N.M.). 



SQUILLA INTERMEDIA, Bigelow. 



Squilla intermedia, Bigelow, Johus Hopkius Univ. Circ, 106, p. 102, 1893. 

 Diagnosis. — A Squilla having very large nearly T-shai)ed eyes; very 

 large and strong ra])torial claws, with six teeth upon the dactylus; the 

 rostrum "narrowed in front and i)rovided with well-marlvcd median and 

 lateral carin;ie; five strong carin;e on the carapace, the median one bifur- 

 cated in front and behind, and the lateral one ending in spines at the 

 anterior lateral angles, posterior lateral nuirgin angled; the lateral 

 margin of the fifth thoracic segment produced into a strongly, sickle 

 shaped acute spine, of the sixth and seventh obliquely truncated and 

 very acute; eight prominent carina^on the abdomiinil segments all ending 

 in spines exce])t the submedian of the first four segments ; a low crest on 

 the telson ending in a small sj^ine, a post-anal keel without a spiue, the 

 dorsal and ventral surfaces of the telson marked by numerous curved 

 lines of very fine pits, six marginal spines, and four to six submedian den- 

 ticles, ten to thirteen intermediate and one lateral one ; the crest and dor- 

 sal side of the margin of the telson very much thickened in the male, the 

 marginal thickening being continuous between the intermediate spines. 

 General description. — This species stands in an intermediate position 

 between 8. panamensis and S. biformis. The body is compactly and 

 strongly put together. The exposed thoracic region is about two-thirds 

 the length of the carapace. The latter occupies a little less tlian one- 

 fourth the total length of the body, while the telson is just one fifth tlie 

 total length. The length of the telson is the same as its width at the 



