512 REPORT ON THE ORDER STOMATOPODA—BTGELOW. 



one lateral; uropod having four to five movable siiines on its outer edge; 

 its basal prolongation with six long teeth on its inner edge and a large 

 rounded lobe on the outer edge of the inner spine. 



General description. — Unfortunately this species has to be described 

 from a single small specimen. The general form of the body is flat 

 tened and rather compact. The greatest width of the abdomen equals 

 the length of the carapace and one-fourth of the total length of the 

 animal, measured from the anterior extremity of the ophthalmic segment 

 to the base of the median marginal sinus of the telson. The greatest 

 width of the carapace equals nine-elevenths of itsl ength. The antero- 

 lateral angles of the carapace are slightly less than right angles and 

 are without spines, while the posterior corners form rather prominent 

 rounded lobes. The only cariiuB on the carapace are an incompletely 

 circular marginal carina at each posterior lateral lobe and Avithin this 

 a short longitudinal carina representing the posterior portion of the 

 lateral ca^'iua of some of the other Squilke. The exposed thoracic 

 segments have well-marked intermediate carinte. The lateral spines 

 on the first segment are compressed antero-posteriorly and are distinct 

 from the ventral ones, which are acuminate and bent slightly forward. 



The sixth abdominal segment is the only one that bears a pair of 

 submedian carin;e ; all the others have well-marked intermediate, lateral, 

 and marginal carinte. All six carinte of the fifth and sixth segments 

 end in spines. There are no spines on the sixth segment in front of 

 the articulations of the uropod. 



The width of the telson at its base nearly equals the length of the 

 sixth abdominal segment and the telson taken together. The telson 

 has six prominent marginal spines without a trace of an additional 

 anterior lateral i)air. The submedian spines in this specimen do not 

 have movable tips, but microscopical examination shows articulations 

 which indicate that they did possess movable tips, which have been 

 broken oft". The marginal teeth are long and sharp. The upper sur- 

 face of the telson is ornamented by a longitudinal crest ending pos- 

 teriorly in a spine and about five shallow furrows running from the 

 crest outward and backward to the posterior margin. There are also 

 some irregular furrowings near the lateral margin. There are faintly 

 marked carinte at the bases of the mtirgintil spines, the lateral pair 

 being continued forward along the margin to the base of the telson. 

 The ventral surface is very faintly marked by furrows corresponding 

 to the dorsal ones. The uropod htxs the two joints of the exopodite 

 of equal length; on the external edge of the first joint there are five 

 movtible spines. The remtirkable teeth on the inner edge of the pro- 

 longation of the basal joint tire long and slender. 



The eyes of this animal are rather small. The corneal region is 

 elongated and slightly bilobed. The corneal axis nearly equals fourteen 

 fifteenths the peduncular one, and is set somewhat obliquely to it. 

 The peduncle is not dilated and is much narrower at its base than the 



