STICHASTER. 
85 
Distribution. Shores of Great Britain, Ireland, and France ; 
Mediterranean. 
a. 
To 30 fms. 
The Minch. 
b. Loch Aber, 70-80 fms. 
ef. Loch Lorn, 5-110 fms. 
‘ Porcupine’ Exp. 
John Murray, Esq. 
John Murray, Esq. 
g, h. 4 miles S.E, Sanda, 30-35 fms. 17/3/88. John Murray, Esq. 
tI, West coast of Scotland. John Murray, Esq. 
m. Kenmare River. 
n. Ballywalter, co, Down. Belfast Nat. Hist. Soc. 
0, p. Off Liverpool. 
g. West of Lundy, Feb. 1888. 
. Cornwall. 
. Falmouth, 
. Plymouth Sound. 
G. F. Tregelles, Esq. 
W. P. Cocks, Esq. 
Dr. Leach. 
v. Plymouth Sound. C. Prideaux, Esq. 
w-y. Plymouth. 
z, a’. Weymouth, 5 fms., Sept. 1880. Edgar A. Smith, Esq. 
b'-d'. Weymouth Bay. 
e'-g'. Worthing. F, Dixon, Esq. 
h'. Brighton, R. Hudson, Ksq. 
. Aberdeen. 
Geo. Sim, Esq. 
STICHASTERID & (see p. 22). 
Key to the Genera of Stichasteride. 
i. Ambulacral groove not constricted at intervals. 
a. Primary calycinal plates not obvious ..,. 1. STICHASTER, p. 85, 
6. Primary calycinal plates very obvious.,., 2. NEOMORPHASTER, 
[p. 87. 
ii. Ambulacral groove constricted repeatedly .... 3. ZOROASTER, p. 87. 
1. STICHASTER. 
Stichaster, M. Tr. Ber, Ak. Berl. 1840, p. 102; Norm, Ann. § Mag. 
xv. (1865) p. 125; Perr. Arch. Zool. iv. (1875) p. 299; Viger, 
Arch. Zool. vii. (1878) p. 105. 
Tonia, Gray, Ann. § Mag, vi. (1840) p. 180. 
Asteracanthion, M. Tr. Syst. Ast. (1842) p. 14. 
Ceelasterias (pars), Ver. Trans. Connectic, Acad. i, (1867 *(71)) p. 247. 
Stephanasterias, 7d. Bull. Essex Inst. 11. (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'. Miill. Zool. Dan. ii. (1788) p. 35, pl. Ixvii. 
Linkia rosea, Thompson, Ann. § Mag. v. (1840) p. 245. 
* Date claimed by Prof. Verrill. 
