STICHASTER. 



85 



Distribution. Shores of Great Britain, Ireland, and France 

 Mediterranean. To 30 fms. 



a. The Minch. 



b. Loch Aher, 70-80 fms. 

 c-f. Loch Lorn, 5-110 fms. 



g, h. 4 miles S.E. Sanda, 30-35 fms. 

 i-l. West coast of Scotland. 



m. Kenmare River. 



n. Ballywalter, co. Down. 

 o, p. Off Liverpool. 



q. West of Lundy, Feh. 1888. 



r. Cornwall. 

 s, t. Falmouth. 



u. Plymouth Sound. 



v. Plymouth Sound. 

 w-y. Plymouth. 



z, a'. Weymouth, 5 fms., Sept. 1880. 

 b'-d'. Weymouth Bay. 

 e'-ff'. Worthing. 



h'. Brighton. 



i'. Aberdeen. 



' Porcupine ' Exp. 

 John Murray, Esq. 

 John Murray, Esq. 

 17/3/88. John Murray, Esq. 

 John Murray, Esq. 



Belfast Nat. Hist. Soc. 



G. F. Tregelles, Esq. 

 W. P. Cocks, Esq. 

 Dr. Leach. 

 C. Prideaux, Esq. 



Edgar A. Smith, Esq. 



F. Dixon, Esq. 

 R. Hudson, Esq. 



Geo. Sim, Esq. 



STICHASTERID^ {see p. 22). 



Key to the Genera of Stichasteridae. 



i. Ambulacral groove not constricted at intervals. 



a. Primary calycinal plates not obvious .... 1. Stichaster, p. 85. 



b. Primary calycinal plates very obvious. .. . 2. Neomorphaster, 



[p. 87. 

 ii. Ambulacral groove constricted repeatedly .... 3. Zoroaster, p. 87. 



1. STICHASTER. 



Stichaster, M. Tr. Ber. Ah. Berl. 1840, p. 102 ; Norm. Ann. $ Mag. 



xv. (1865) p. 125; Pen: Arch. Zool. iv. (1875) p. 299; Viguier, 



Arch. Zool. vii. (1878) p. 105. 

 Tonia, Gray, Ann. $ Mag. vi. (1840) p. 180. 

 Asteracanthion, M. Tr. Sysi. Ast. (1842) p. 14. 



Coelasterias (pars), Verr. Trans. Connectic. Acad. i. (1867 *[71]) p. 247. 

 Stephanasterias, id. Bull. Essex Inst. iii. (1872) p. 5. 



A Stichasterid in which the skeleton of the arms is formed of 

 regular rows of contiguous granulated plates. There are four rows 

 of podia for the whole length of the arm. 



1. Stichaster roseus. 



Asterias rosea, O. F. Mull. Zool. Dan. ii. (1788) p. 35, pi. lxvii. 

 Linkia rosea, Thompson, Ann. Sf Mag. v. (1840J p. 245. 



Date claimed by Prof. Verrill. 



