177 



somewhat more or less and in the specimen loug 5() mm. only 

 Vu projects beyond the apex. The shorter ramus is usually slightly 

 loDger than the antennular peduncle, sometimes just as long 

 and in a specimen of medium size, long 50 mm., the peduncle 

 is 7,4 mm. long, the shorter ramus 7 mm. 



Mandibular palp tliree-jointed (Fig. 6), closely resembling that 

 of L. serratus (Penn.). In a specimen, long 66 mm., the l^t or 

 basal joint is 0,7 mm. long, the 2'i 0,46 mm. long and 0,155 mm. 

 thick, 3-times as long as thick, the tapering 3<^ joint 0,8 mm. 

 long and 0,12 mm. thick at base. 



In the ova-bearing specimen the 2*^ legs reach by the fingers 

 and one-third the palm beyond the antennal scales, in younger 

 specimens only with the fingers or apart of them. Carpus distinctly 

 shorter than merus and slightly longer than the palm, fingers 

 invariably much longer than the palm, and as much shorter than 

 the merus as they are longer than the carpus. 



In one female without eggs, long 68 mm., the rostrum is 

 abnormally developed. It hardly extends 2,5 mm. beyond the 

 antennal scales, there are 12 teeth on the upper margin and 

 these teeth are situated along the ivhole length ; two teeth are 

 on the carapace, the 'M immediately before the orbital margin, 

 the 2J tooth is only one-third farther distant from the 1»* as 

 from the M, the 6tli and the 7th tooth are smaller, i. e. shorter, 

 than the 5ih or the Stl' and the two foremost teeth near the apex 

 are not situated on the upper margin but at either side of it. 

 The shorter ramus of the outer antennular fiagellum is distinctly 

 longer than the peduncle, extends by half its length beyond the 

 apex of the rostrum and is fused to the longer not yet for one- 

 sixth its length. For the rest this specimen agrees with the others. 



A female without eggs, long 60 mm., bears a Bopyrus at the 

 left side of the carapace. 



General distribution : Adriatic and Mediterranean Seas (Lussin, 

 Zara, Lesina, Marseille, Nizza, Corsica, Sicily, Messina, Naples, 

 according to Risso, Heller, Gourret and others). 



