94 



A CORNISH FAUNA, 



nig the stomach, of mackerel and other fishes. There were 

 myriads in the stomachs of the mackerel at the time when I 

 obtained those I sent you." As a mark of esteem Professor 

 Bell " dedicated the species to that indefatigable and acute 

 observer to whom we are indebted for so many valuable con- 

 tributions to natural science." 



"We have since procured specimens near the coast, but only 

 one or two. 



S Q UILLADJE. 



Genus, Squilla. 



Carapace reduced in size, covering only half the Pereion 

 (body), second pair or gnathopoda (outer maxilliped orfootjaws, 

 of authors), large sub-chelate. First, three pair of legs (perei- 

 opoda) small, sub-chelate. Posterior three pairs only five joints, 

 third joint carrying a second branch. Pleon large. 



Squilla mantes. — Pondel. — Bell, Stalk-eyed Crust, p. 351. 



This species was taken first by Mr. Couch on the coast of 

 Cornwall, and Professor Bell is indebted to him for a knowledge 

 of it. It was found " about two leagues orf, where the bottom 

 is rocky with spots of sand." 



Squilla desmarestii. — Risso ; Edwards ; Bell, Stalk-eyed Crust, 

 p. 354. 



Mr. Couch in his Cornish Fauna of 1868 records this species 

 as rare, a few specimens having come into his possession, and 

 he says that it seems to be the species alluded to by Pennant 

 and Turton, under the name of S. mantes. 



GROUP CUMACEA. 



BIASTYLIDJE. 



Genus, Diastylis. — Say, Trans. Phil. Soc., PJulad., Vol. 1. 

 Carapace having the lateral angles developed anteriorly and 

 uniting in front of the eye and antennae, and produced to look 

 like a split rostrum. Eyes confluent as a single organ. Tail 

 ending with a pair of double stylets. Telson (extreme point of 

 the tail) produced to a long sharp process. 



Diastylis Rathkii. — Spence Bate, Ann. Nat. Hist, June, 1856. 

 Cuma Rathkii. — Kroyer, Voyages en Scand. 



