290 Canon A. M. Norman on Jseropsis DoUfusl, 



referred to. On the eastern side of the harbour at spring- 

 tides a patch of fine sand is laid bare ; here, while the water 

 still covers the sand, the tips of the long arms of Ophiocnida 

 were seen waving to and fro in the water, and the use of a 

 spade enabled me to procure a good supply of specimens. 



I may add that Pinna rudis (Linn.), the largest of our 

 British shells, lives between tide-marks at Salcombe, and 

 that the dredge worked in the bed of the estuary, over which 

 there is a strong tideway, which sweeps all small material 

 away, brings up dead shells of Pecien maximus and other 

 bivalves, pieces of crockery, &c., which afford the student of 

 the Polyzoa a very rich harvest of encrusting species. 



EXPLANATION OF PLATE V. Figs. 1, 1 a. 



Fig. L Pereionotus testudo, seen from above. 

 Fig. 1 a. Ditto, seen from the side. 



XXIX. — Jseropsis Dollfusi, a neio Mediterranean Isopod. 

 By the Eev. Canon A. M. NoRMAN, M.A., D.C.L., LL.D., 

 F.R.S., &c. 



[Plate V. figs. 2-8.] 



In 1885 Dr. B. Koehler described an interesting new genus 

 of Isopoda allied to Jcera^ which he had discovered in the 

 Gouliot Caves of the Island of Sark. To this Isopod he 

 gave the name Jceropsis hrevtcornis (Ann. des Sci. Nat., Zool. 

 6* ser. vol. xix. p. 1, pi. i. figs. 1-9). 



I have just received from the Smithsonian Institute of 

 Washington a paper (" Key to the Isopods of the Pacific 

 Coast of North America, with Descriptions of Twenty-two 

 new Species," by Harriet Richardson, Proc. U.S. Nat. Mus. 

 vol. xxi. 1899 ; reprinted in the current volume of the 

 * Annals '), in which, at p. 860, is described and illustrated 

 with woodcuts (figs. 31-33) another and very closely allied 

 species of this genus, Jceropsis lohata, H. Richardson. Two 

 specimens of this form were procured in Monterey Bay, 

 California, by Mr. Heath. 



The object of the present paper is to make known a third 

 species of Jceropsis which I procured at Naples when working 

 at the Zool. Stat, in 1887. 



