172 PLYMOUTH MARINE INVEKTEBRATE FAUNA. 



The following are typical species occurring on the two classes of 

 grounds : — 



Coarse Grounds. Cha'topterus variojyedatus, Hyaliiwecia tuhicola, 

 Halecium halceiniim and H. Beani, Atelecyclus septemdentatus, Ophiura 

 alhida, Ojyhiadis Balli, Vcnua fasciata, Tapes 'virgineus, and Ehalia 

 Uibcrosa and E. tnmefacta. 



Tine Grounds. Cellaria sinuosa and C. fistulosa, Opliiura ciliaris, 

 ScrtidareUa Gayi and S. polyzonias, Echinocardium cordafum, Corystes 

 cassivelaunus. 



From the above description it will be seen that the fauna of the 

 Rame-Eddystone grounds resembles very closely that of the grounds in 

 the neighbourhood of the Eddystone, already described in this Journal 

 (vol. V, p. 365 d scff). 



The Looe-Eddystone Grounds. This name has been applied to an 

 extension westwards of tlie luime-Eddystone Grounds. Depths 

 25-30 fms. The fauna is of a similar general character to that of 

 the latter grounds, but is particularly rich, as the result probably of the 

 presence of much rough and rocky ground intermingled with trawling 

 ground. 



The Eddystone Grounds. For a detailed description of these 

 grounds see this Journal (vol v. p. 365). 



LIST OF THE SPECIES. 

 Explanation of Abbreviations. 



The authorities for the various records are indicated by their initials, of whicli 

 the following is a complete list ; those of members, or late members, of the stall' are 

 marked with an asterisk : — 



*A.J.s. — A. J. Smith, Assistant at the Laboratory since 1895. 



A.M.N. — The Rev. A. M. Norman, ll.d., f.r.s. 



A.o.w, — A. 0. \Yalker. 



C.C.N.— Professor C. C. Nutting, University of Iowa. 



c.s. — Professor Charles Stewart, ll.d., f.r.s., Conservator of the Royal College 

 of Surgeons. 



E.A.M. — Professor E. A. Minchin, m.a.. Professor of Zoology, University College, 

 London. 



K.B. — Emile Bnimi^t, Lie. ^s Sci., Paris. 



E.G.G.— Dr. E. G. Gardiner, Woods Holl, Mass. 



