Crustacea. 3685 



Spiny Shrimp, Crangon spinosus. Rare : a few have been met 

 with. 



Bell's Shrimp, Crangon sculptus. Not uncommon. 



Risso's Shrimp, Nika edulis. Not rare in the Moray Firth. 



Montagu's Shrimp, Athanas nitescens. Three specimens have been 

 obtained. 



Sowerby's Shrimp, Hippolyte spinus. 



Leach's Shrimp, Hippolyte varians. 



Only one specimen of each of these species has been found. 



Ring-horned Shrimp, Panda lus annulicornis. Frequent in the 

 Firth. Dredged five miles north of Lossiemouth, August, 1852. 



Some rather imperfect specimens hold out the prospect of at least 

 one other species of Pandalus being in this district. 



Cuma trispinosa. 



Alauna rostrata. 



Neither of these two species, particularly the latter, seems to be 

 very rare. 



Thompson's Opossum Shrimp, Mysis Chamaeleon. Findhorn Bay, 

 where it has been frequently met with amongst myriads of the follow- 

 ing species. 



Common Opossum Shrimp, Mysis vulgaris. In the autumn months 

 a continuous line of this species, miles in length, may be seen skirting 

 the Bay of Findhom and the canal of the Loch of Spynie. 



It has been chiefly by the assistance of Bell's ' History of British 

 Crustacea ' that the species of the above list have been determined 

 and arranged. This work has but one fault, but that, to the student 

 of British Natural History, a most grievous one, — the slow rate at 

 which it has been issued from the press. The eighth number, com- 

 pleting the Podophthalmous Crustacea, is but just published, eight 

 years having elapsed since the first number appeared. It must how- 

 ever be readily confessed, that although it is thus but slowly appearing, 

 its high value as a guide goes far, as each fresh number comes to hand, 

 to compensate the anxieties caused by the delay. And now, as the 

 light from this guide is for a season at least withheld, to lead one's 

 way among them, the Edriophthalmous Crustacean forms hitherto col- 

 lected from the waters and shores of the Moray Firth, appear a some- 

 what dark, forbidding, and unmanageable crowd, in which only the 

 more marked species have been identified with the descriptions given 

 in the third volume of Milne-Ed wards's work, or in some papers, by 

 various authors, published in ( Jameson's Journal' and in the ' Annals 



