1894. 



PROCEEDINGS OF THE NATIONAL MUSEUM. 



505 



rounded, anterior and posterior lateral lobes. The cervical suture is 

 faintly marked on the outer side of eacli of the two longitudinal sutures. 

 The exposed thoracic and tirst five abdominal segments are devoid 

 ofcarinfe or spines. The sixth abdominal has a short spine at each 

 of its posterior lateral angles and a larger spine curved backward in 

 front of the articulation of each uropod (flg. 5). The telson is per- 

 fectly smooth except for a transverse row of five spines on the dorsal 

 side near the posterior margin (figs. 4 and G). The mobile submedian 



Fig. 3.. 



PSEl'DOSQUILL.V J^^TYI.IFERA. 



VII l.y \V. F. SimkiikIs. About hull natural < 



Ficc. 4. 



I.YSIOSQUILLA lilMIMENSIS 



AhiMit twue ii.itiiral .sizi-. 



pair of marginal spines are placed a little toward the ventral side and 

 are curved upward (figs. 5 and 6). They are not much longer than 

 the adjoining denticles. Judging from Miers's figure, the marginal 

 spines in our species as well as the submedian denticles are consider- 

 ably larger than in L. acanfhoearpKs, and there apjiears to be no median 

 sinus in the latter species, while there is a small one in the former. 

 The basal segment of the uropod (fig. 5) bears two stout spines, of 

 which the inner is much the longer. The endopodite is cleaver-shaped. 



