130 OPHITJROIDEA. 



p-r. Kilkierran Bay, 4-80 fins., 0/7/90. R. Irish Acad. 



s-u. Portaferry and Strangford Lough. Belfast Nat. Hist, & 



Phil. Soc. 

 v-.r. Oft' Liverpool. 

 y-d'. Devonshire. 



e'. Falmouth. W. P. Cocks, Esq. 



f, g'. Plymouth Sound. 

 h'. ? Plymouth Sound. 

 i'-k' . E. coast of Ross-shire. Dr. Sutherland. 



/'-«'. Shetland. E. M. Nelson, Esq. 



o',p'. Old British Coll. 



2. 0PHI0PSILA. 



Ophiopsila, Forbes, Trans. Linn. Soc. xix. (1845) p. 149 ; Liitken, Danske 

 Selsk. Shift, v. (1859) p. 235 ; Lyman, 111. Cat. M. C. Z. (1865) 

 p. 149 ; id. Chall. Rep. Oph. (1882) p. 159. 



Disk with very minute overlapping scales nearly or altogether 

 covering the radial shields. Arm-spines short and flattened, from 

 six to twelve. Lowest tentacle-scale elongated, spatula- or dagger- 

 shaped ; the tentacle-scales lie in a longitudinal groove. 



1. Ophiopsila annulosa. 



Ophianoplus annulosus, Sars, Nyt Mag. x. (1859) p. 23, pi. i. figs. 2- 

 7 ; Brady 8f Robertson, Ann. Sf Mag. iii. (1869) p. 355, pi. xxii. 

 tigs. 1-6. 



Ophiopsila annulosa, Liltk. Danske Vid. Selsk. Shift, v. (1859) 

 p. 258; Ludw. Mitth, zool. Stat. Neap. i. (1879) p. 551; Cams, 

 Faun. Bled. (1884) p. 95 ; Hoyle, Proc. R. Phys. Soc. Ed. viii. 

 (1885) p. 152. 



This species, which I have never seen, is defined by Sars thus : — 

 " Disco supra fusco annulis albis ; spinis brachiorum xii." It has 

 been recognized by Dr. Norman among specimens collected on the 

 west coast of Ireland, but is otherwise only known from the Medi- 

 terranean; 40-50 fms. 



OPHIOTHRICIM: {see p. 26). 



0PHI0THRIX. 



Ophiothrix, M. Tr. Arch. f. Nat. vi. (1840) p. 328 ; iid. Syst. Ast. 

 (1842) p. 109; Lyman, 111, Cat. M. C. Z. (1865) p. 153; Norman, 

 Ann. # Mag. xv. (1865) p. 107 ; Lyman, Chall. Rep. Oph. (1882) 

 p. 213. 



Tooth-papilloc numerous ; teeth ; no rnouth-papillse ; the mouth- 

 frames united in their proximal half only so that there is a pore in 

 the hinder part. Radial shields long. Disk spiny or granulated or 

 both. Arm-spines rather long and numerous, notched at their 

 sides, generally glassy. 



