INVERTEBRATE ANIMALS OF VINEYARD SOUND, ETC. 743 



4mm (;q 10™™, mostly about 5""" to G""" ; diameter of tlie oscales, in dry- 

 specimens, about 1'"'". , 



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

 and Vineyard Sound, 1 to S fatliouis ; Watch Hill, Rhode Island 5 Great 

 Egg Harbor, New Jersey. 



This species has a much fiuer and more delicate texture than C. ocu- 

 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. 



HALICnONDRIA PANICEA Johuston. 



Brit. Spouges, p. 114, Plate 10, Plate 11, fig. 5, 1842 ; Bowerbank, British SpongiacL-e, 

 vol. i, p. 195, Plate 19, figs. 300, 303 ; vol. ii, p. 229, I80G. Sponyia panioea Pallas, 

 Elencli. Zooph., p. 383, 1766. 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 alga^, in 4 to 8 

 fathoms ; otf Gay Head ; Casco Bay ; Bay of Fuudy. 



Halichondria, species undetermined, a. 



Watch Hill, Rhode Island, associated with the preceding. 



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

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



Halichondria ?, species undetermiued, b. (p. 334.) 



Long Island Sound near New Haven ; Vineyard Sound. 



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

 low- water mark. Color when living, bright j'ellow. Oscules rather large, 

 conspicuous. 



Halichondria ?, species undetermined, c. 



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

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



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

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

 brittle. 



This is, perhaps, a species of Benlera Schmidt {Hymeniacidon Bow- 

 erbank).* 



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



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

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



Reniera ?, species undetermined, h. 



Vineyard 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. 



