Yerrill, Notes on Radiata. 459 



Alcyonium. rnbiforme Dana. 



Lohularia ruhiformis Elir., Corall. des rothen Meeres, p. 58, 1834. 

 Alcyonium rubiforme Dana, Zoophytes, p. 625, 1846 ; Verrill, Mem. Boston Soc. Nat. 

 Hist., i, p. 4, 1863; Verrill, Proceedings Essex Inst, iv, p. 190, 1865. 



Corallum red, with a short trunk, which divides into numerous, 

 large, rounded lobes, or short, obtuse branehlets. The lobes, in con- 

 traction, are often subglobular, covered with numerous small polyps. 

 Ccenenchyma, between the retracted polyps, even and granulous. Pol- 

 yps in expansion much exsert ; tentacles long, lanceolate, acute, with 

 rather long lateral lobes. Color, in alcohol, brick red, not diaphanous. 



Arctic Ocean, north of Behring's Straits, in 35 fathoms, — Capt. 

 JohnKodgers; West Coast of Behring's Straits, in the Laminarian 

 zone, — Dr. Wm. Stimpson (North Pacific Exploring Expedition) ; 

 Banks of Newfoundland, — Coll. Essex Institute ; Northern Seas of 

 Europe, — Ehrenberg. 



Specimens apj^arently identical with this species were recently ob- 

 tained by me at Eastport, Me., in 10 fathoms. 



The northern species of Alcyonida? require careful revision. This 

 species is evidently closely allied to A. carneum Ag., occurring on the 

 coast of New England, from Cape Cod to the Gulf of St. Lawrence. 



Alcyonium (?) Bradleyi Verrill, sp. nov. 



. Corallum, in the only specimen observed, rising as an elongated, 

 subconical, simple stalk, with a rounded summit, and a somewhat 

 spreading base. Whole surface covered with numerous, scattered, 

 small polyps, which are very exsert in expansion. 



Height, while living, 1 inch ; diameter -25 to *33 ; polyps '05 to '25 

 long, in expansion ; diameter "02 to '03 of an inch. 



" Whole surface and bodies of polyps yellowish white ; tips of pol- 

 yps dark crimson, surmounted by eight- yellowish white, semi-oval, 

 tentacular lobes. Whole group flexible, without a solid axis." 



Panama Bay, dredged in 3 to 4 fathoms, on loose shells, — F. H. 

 Bradley. 



The specimen from w^hich the description and drawings were made 

 by Mr. Bradley has not been found among his collections. There- 

 fore the generic characters cannot be ascertained at present with 

 certainty. 



