434 Dr. Johnston on the British Aphroditacece. 



it with the present, but the description is otherwise so very 

 applicable, that, I must acknowledge, a suspicion of their being 

 the same species still remains. That this is the Aph. scabra 

 of British authors scarcely admits of a doubt. It is much less 

 certain whether it is the Aphrodita clava of Montagu ; but as 

 he has himself suggested their possible identity, and as his 

 description and figure are both of them too imperfect to cha- 

 racterize a species, we see no harm in reducing his to a con- 

 jectural synonym. In the description the scales are stated 

 to be " twelve or thirteen pairs," but the figure shows thirteen 

 scales on one side and fourteen on the other, with a naked 

 space between the rows. Audouin and M. Edwards conjec- 

 ture that Aph. clava may be the same as their P. Icevis charac- 

 terized by having fourteen pairs of perfectly smooth scales. 



Plate XXII. Fig. 1. Polynoe squamata, nat. size. la. The jaws, 

 slightly enlarged. 1 b. A scale magnified. 1 c. A spine magnified. 1 d. 

 A bristle from the ventral branch of the foot magnified. 



** Scales deciduous. 

 2. P. cirrata, scales 15 pairs, ovate or kidney-shaped, im- 

 bricate ; bristles of the dorsal branch of the feet shorter than 

 those of the ventral branch. Plate XXII. fig. 2. 



Aphrodita cirrata, Mull. Zool. Dan. Prod. 218. no. 2644. Fabr. Faun. 

 Grcenl. 290. tab. fig. 7. Bosc Vers, i. 183. — Aph. squamata, Perm. 

 Brit. Zool. iv. 87. {excl.fig.) — Aph.imbricata, Penn. Brit. Zool. iv. 88. 

 Stew. Elem. i. 388. Jameson in Wern. Mem. i. 558. — Aph. violacea, 

 Mull. Zool. Dan. prod. 218. no. 2645. Turt. Gmel. iv. 81.— Aph. 

 plana, Stew. Elem. i. 388. — Polynoe imbricata, Johnston in Zool. Journ. 

 iii. 332. — P. cirrata, Audouin 8f Edw. in Ann. des Sc. Nat. xxvii. 422. 

 Var. With a dark red fascia along the back. — Aphrodita lepidota, Pallas 

 Misc. Zool. 94. tab. 7. fig. 15 a, b. and tab. 8. fig. 1, 2. Mull. Zool. 

 Dan. prod. 218. wo. 2643. Turt. Gmel. iv. 81. (exclus. syn.) Stew. 

 Elem. i. 388. Bosc Vers, i. 183. — Polynoe lepidota, Johnston in Zool. 

 Journ. iii. 333. 

 Hab. Under stones between tide marks, common. " Taken off Angle- 

 sey," Pennant. Leith shore, and Orkney and Shetland Islands, Jameson. 

 Berwick Bay, common, G. J. 



Desc. Body elliptic-oblong, somewhat narrowest poste- 

 riorly, about 1J inch long, 3 lines broad, variously coloured, 

 of a uniform olive, brown, or mottled, often marked with a 

 series of pale spots along the sides, one to every scale, some- 

 times with a red band down the back, and sometimes pied 



