PAL^MON SQUILLA. 



DECAPOD A. 



MACROUHA. 



305 



PALMMONIDM. 



Pahemon Squilla. Fabr. 



Specific Character. — Rostrum nearly straight ; the apex emargiiiate ; above with 

 seven or eight teeth, of which two are on the carapace, and the third immediately 

 ahove tlip ocular notch ; beneath with three teeth. 



Cancer Squilla, Linn. Syst. Nat. I. 1051. 



Astacus „ Fabr. Ent. Syst. II. p. 485. 



Pa/icmon „ Fabr. Suppl. Ent. Syst. p. 403.— Latr. Hist, des 



Crust, et des Ins. VI. p. 257. — Leach, Edinb. Enc. 



VII. p. 432.— Malac. Brit. t. xHii. f. 11-13.— Edw. 



Hist, des Crust. IV. p. 390. — Couch, Corn. Faun. 



p. 80. — W. Thompson, Crust, of Ireland. 



This species differs from the former in a few distinct, 

 but, with one exception, not very tangible characters. The 

 whole animal is much smaller, being not more than half the 

 length ; the first pair of feet are shorter in proportion, and 

 the second pair less robust. But it is in the rostrum that 

 the principal and most obvious distinctive characters exist. 

 This part is almost straight, having, however, a very slight 

 curve upwards towards the extremity ; it has seven or 

 eight teeth on the upper side, and three on the under ; but 



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