pal^emon. 135 



Pal^mon squilla, Linn. sp. White Shrimp. — Beak 

 not extending beyond the lamellar appendage of outer 

 antennae, nearly straight, and toothed above throughout 

 with from seven to eight teeth, while there are three or four 

 below. 



A much smaller species than the P. serratus, and appa- 

 rently not uncommon on our coasts. The Rev. A. Norman 

 tells me he takes it off the Isles of Cumbrae and Arran, 

 and at Falmouth and Land's End, in rock-pools. Other 

 species beside this are named "White Shrimp/' 



Pal^emon vauians, Leach. — Beak quite straight, tip en- 

 tire ; above with four to six teeth, beneath with only two. 



Not a common species ; it is met with on the coasts of 

 Devon and Dorset, and is also taken on the Irish shore. 

 The Rev. Alfred Norman finds it off the coast of Guernsey, 

 and in a note he kindly informs me, " I 'have taken this 

 species in great abundance at Clevedon, in a ditch far above 

 ordinary high-water mark, of which the water was scarcely 

 at all brackish ; it was in company with myriads of Rissoa 

 ventricosa. I found some also further up in a stream of 

 clear running water, along with Apleocus hypnorum and other 

 fresh- water shells." 



Pal^emon Leachii, Bell. — Beak nearly straight, with 



