498 



REPORT ON THE ORDER STOMATOPODA—BIGELOW. vol.xvii. 



spine. The distance through the posterior part of the crest to the 

 ventral surface of the telson is about .eiiual to one-fourth of the 

 width of the telson. The other four carinte are less elevated. The 

 marginal spines are prominent and the movable tips of the subme 

 dian pair are much longer than in 0. scyllarus. The basal prolonga- 

 tion of the uropod (fig. 1) is continued into two simple spines of which 

 the outer one is the longer but is not so long 

 as the exopodite. The distal joint of the lat- 

 ter is about two-thirds as long (measured on 

 the ventral side) as the iiroximal one, which 

 bears eleven movable spines. The eyes are 

 very large, but are subsplierical and not at 

 all triangular. The width of the cornea equals 

 0.00 of tlie length of tlie body. The first 

 antenme are short, the first three segments 

 hardly extending beyond the eyes and almost 

 equaling the flagella in length. The second 

 antennae reach almost as far forward as the 

 first pair. The antennary scales are large, very 

 nearly equaling the carapace in length and 

 half as wide. The raptorial claw is rather small. 

 When folded it only reaches backward to the 

 cervical suture of the carapace, and the dac- 

 tylus is only three -fourths as long as the 

 manus. The latter is devoid of spines or pec- 

 i.n.u. jv,netM„e5natn,.,i.s,7.e, tiuatlons of auy lilud, and is provided with 



a simple continuous groove for the reception of the dactylus when 

 closed. The dactylus is strongly dilated at the base, and is provided 

 with six very small and thin teeth on its inner edge. The appendages 

 to the pleopod are linear. A remarkable peculiarity of the specimen 

 before me is that while it is a male it is like a female in having no 

 clasping organs on the exopodites of the first abdominal appendages, 

 which are just like the succeeding ones (fig. 2). 



It is probable that this is a very young specimen, and some of its 

 characters may be due to its youth, but a young <}. chiragra of the same 

 size possesses the clasping organs and exhibits all the adult features. 



Color. — The alcoholic specimen has a dark spot on the carapace and 

 black markings on the uropods. 



Size. — Length of body, 2 cm. 



Locality. — The unique specimen was taken by the Albatross in 1885 at 



station 2323 at a depth of 163 fathoms off Havana, Cuba. {No. 17997, 



U.S.N.JM.) 



Genus PSEUDO SQ UILL A (Guerin). 



SquiUes trapueK, Milne-Edwards, Hist. Nat. Cr. ii, p. 525, 1837. 



SquiUce i&ect. Hi) jyarallela', de Haan, Siebold's Fauna Japonica, Cr.,p.221, 1849. 



PsendosquiUa, Guerin (ined.), Dana, U. S. Expl. Exp., xiii, Cr., i, p. 615, 1852. — 



MiEKS, Ann. and Mag. Nat. Hist. (5), v, p. 108, 1880,— Bkooks, Voyage of 



the Challenger, xvi, ii, p. 53, 1886. 



ENDOPODITE OF ODONTODAC 

 TYLUS HAVANENSIS. 



Endopoilite from first aljdon 



