INVERTEBRATE ANIMALS OF VINEYARD SOUND, ETC. 743 



4°^^ to lO"""^, mostly about 5^^'^ to 6"*^ j diameter of the oscules, in dry 

 specimens, about I"'"'. 



North Carolina to Cape Cod. Very common in Long Island Sound 

 and Yineyard Sound, 1 to 8 fathoms ; Watch Hill, Rhode Island ; Great 

 Egg Harbor, New Jersey. 



This species has a much finer and more delicate texture than G. ocii- 

 lata, due to the smaller fibers and spicules, as well as to the smaller 

 meshes of the skeleton. The branches are also smaller and much more 

 numerous than they usually are in that species. 



Halichondria panicea Johnston. 



Brit. Sponges, p. 114, Plate 10, Plate 11, fig. 5, 1842 ; Bo werbank, Britisli Spongiadse, 

 vol. i, p. 195, Plate 19, figs. 300, 30.3 ; vol. ii, p. 229, 1836. Simigia imnieea Pallas, 

 Elench. Zoopli., p. 383, 1768. Tedania (?), this Report, p. 498. 



Rhode Island to the Arctic Ocean ; northern coasts of Europe to Great 

 Britain. Abundant at Watch Hill, Rhode Island, on algse, in 4 to 8 

 fathoms ; otf Gay Head j Casco Bay ) Bay of Fundy. 



Halichqndria, species undetermined, a. 



Watch Hill, Rhode Island, associated with the preceding. 



Grows in large tuberous masses, on algae, like the last, but has a 

 smoother surface and finer and firmer texture. (See p. 498.) 



Halichondria ?, species undetermioed, h. (p. 334.) 

 Long Island Sound near New Haven ; Yineyard Sound. 

 Forms broad, uneven incrustations on the under side of stones, at 



low- water mark. Color when living, bright yellow. Oscules rather large, 



conspicuous. 



Halichondria ?, species undetermined, c. 



Vineyard Sound, on the under side of overhanging banks, on the salt 

 marshes near AYaquoit; on the piles of wharves at Wood's Hole. 



Forms large, irregular, thick masses, often containing much foreign 

 matter ; surface uneven, rising into irregular prominences. Soft and 

 brittle. 



This is, perhaps, a species of Beniera Schmidt (Mymeniacidon Bow- 

 erbank).* 



Reniera ?, species undetermined, a. (p. 334.) 



Yiueyard Sound, 1 to 10 fathoms. Forms large, irregular, soft 

 masses, 3 to 5 inches in diameter, of a light yellow color when living. 



Reniera 1 species undetermined, J). 



Yineyard Sound, 3 to 10 fathoms. Forms large, irregular, thick 

 masses, with numerous acute, irregular, often ragged, conical promi- 

 nences, rising from its upper surface. 



* It was not studied carefully wlien recent ; and I have no specimens of this and sev- 

 eral of the other species at hand, for most of the sponges were sent elsewhere for com- 

 parison with named types, and have not yet been returned. 



