Irom the Annals ant) Maoazink ok Natural riisTonY, 

 Ser. 6, Vol. xiii., February 18r)4. 



On some new and rare Crustacea from Scotland. By 

 Thomas Scott, F.L.S., Naturalist to the Fishery Board 

 for Scotland, and Andrew Scott. 



[Plates VIII. & IX.] 



A CONSIDERABLE quantity o£ material (mostly marine), ob- 

 tained by dredging and shore-collecting, has been examined 

 by us during the past few months. The material was from 

 various places in the Moray-Firth district and from the Firth 

 of Forth. The examination of the material has yielded a 

 number of species of rare and interesting Crustacea, and espe- 

 cially of Copepoda, and descriptions, with suitable drawings, 

 of these are being prepared ; those we now propose to record 

 comprise five species of the Harpacticidse and two of Ascomy- 

 zontidge, with notes on a few other apparently rare forms. 



Harpacticidae. 



Amymone nigrans *, sp. n. (PL VIII. figs. 1-7.) 



Length '4 millim. (^^ of an inch). The ventral edge of the 

 first body-segment is truncate and sinuate, and the free por- 

 tion of its posterior edge slightly crenate; the ventral edge 

 of the posterior body-segments is produced into four irregular 

 tootii-like processes (fig. i). The two male postero-ventral 

 processes (a, a) are more acutely angular than those of the 

 male of Amymone spha^rica, Claus. The anterior antennae 

 (autennules) are seven-jointed ; in those of the female the 



* Nigrans, blacldsh. 



