128 ON THE ASTERIAD7E OF THE IRISH SEA, 



FAMILY III. CRINOIDEvE. 



1. Comatula rosacea,* Lamarck. 



Not rare on the Manx Coast, in deep water. The Phytocrinus 

 Europceus {Pentacrinus Europceus, J. V. Thompson), has not yet 

 occurred on the Manx Coast, though found on the opposite shores 

 of Ireland not unfrequently. 



DESCRIPTION OF PLATES. 



Plate III. — Generic Characters of Asterice. 



I. Asterias. — a, general form — b, upper surface of a ray, shewing 

 the marginal plates — c, a spine. 



II. Goniaster. — o, general form — b, marginal plates — c, border of 

 avenue, (the round dots represent the suckers) — d, a spine. 



III. Palmipes. — a, general form — b, fasciculus of spines from dorsal 

 surface — c, ditto from ventral surface — d, border of avenue. 



IV. Asterina. — a, general form — b, surface spines — c, ditto magni- 

 fied — d, border of avenue. 



V. Linkia. — a, general form — b, border of avenues — c, surface 

 spines and pores — d, a spine magnified. 



VI. Solaster. — a, general form — b, surface spines of Solaster papposa 

 — c, ditto of Solaster endeca — d, border of avenue ( Solaster papposa ) 

 — e, ditto (Solaster endeca). 



VII. Stellonia. — a, general form — b and c, surface spines — d, mar- 

 ginal avenue spines — e, border of avenue. 



VIII. Luidia. — a, general form — b, surface spines — c, border of 

 avenue. 



Plate IV. 



1. Goniaster Templetoni — 2. the same, under surface (part of) — 

 3. Ophiura texturata (upper surface) — 4. ditto (under surface) — 

 5. Ophiura albida (upper surface) — 6. ditto (under surface). The 

 disk only, with a small portion of the rays of these two ophiurse is 

 represented — 7. disk and one of the rays of Ophiocoma neglecta — 

 8. ditto of Ophiocoma minuta. 



" 1. C. rosacea, Flem. p. 490, Link, p. 55, tab. 36, No. 156. Comatula Medi- 

 terranea, Lam. ii. p. 535. Asterias bifida, Penn. p. 65, No. 70. 



