118 



smooth, presenting only a rudimentary denticulation near the 

 apex. This species is not mentioned in the List of Dr. 



THALL^YITZ. 



4° Leavdcr Brauflti Czern. from the Bay of Sebastopol. (Y. Czer- 

 xiAvsKY, 1. c., p. 43, Tab. III, fig. 8). In this species the 

 rostrum is lanceolate, does not reach bevond the antennal 

 scales and is - dentate ; the 2^ tooth is situated over the 



D 



orbital margin and the apex is entire. Merus of 2d legs 

 very long, carpus reaching bevond the antennal scales, palm 

 hardly longer than fingers. 



IIL Key to the described Species and Varieties. 



u' Mandibular palp two-jointed. Fingers of 2d legs little more 



than half as long as the palm, proportion 9:16. Three teeth 



on the carapace, the 4th tooth either immediately before or 



just above the orbital margin, rarely only two teeth are on 



the carapace with the Sd just over tliat margin. Second tooth 



of the upper margin just midway between the Ist and the 



3d. Shorter ramus of outer antennular flagellum, the coalesced 



portion included, just as long as antennular pedunclc. Carpus 



of 2d legs measuring more than two-thirds the lengtli of the 



chela, often slightly longer than it. 



b' Carpus of 2d legs longer than merus, usually distinctly 



longer than chela and rather slender, 8 — 9-times as long 



as thick distall y. 



Coalesced portion of shorter ramus of outer antennular 

 tlagelhim either a little longer or a little shorter than 

 the free portion, rarely of equal length. 

 SquiUa (Linné) Typical form. 

 //' Carpus of 2d legs usually a little shorter than chela and 

 usually a little less slender than in the typical form. 

 <■' Coalesced portion of shorter ramus of outer antennular 

 flagellum usually distinctly shorter than the free portion. 

 SquiJla (Linné). var. iiitcnncdid n. 



