708 EEPOET OF COMMISSIONER OF FISH AND FISHERIES. 



TUBULIPORA PLABELLARIS Siuitt. (p. 405.) 



Op. cit., p. 401, Plate 9, figa.6to8. Tuhipora flaheUarls Fabricius, Fauna Grcenl., 

 p. 430, 1780 (non Johnston, sp.). Tubulipora phalangea Johnston, Biit. Zoiiph., 

 ed. ii, p. 273, Plate 46, tigs. 1, 2. 



Long Island Sound to Greenland ; northern coasts of Europe to Great 

 Britain. Common at Thimble Islands, 1 to 5 fathoms, on algfe, hydroids, 

 etc.; Watch Hill, Rhode Island; Vineyard Sound; Casco Bay ; Bay of 

 Fundy, and northward. 



CTENOSTOMATA. 



Alcyonidium ramosum Verrill. Plate XXXIV, fig. 257. (p. 404.) 



American Journal of Science, vol. iii, p. 289, Plate 8, fig. 10, 1872. 



Much branched, when full-grown; the branches round, irregularly 

 dichotomus, usually crooked. Surface glabrous, smooth, or nearly so, 

 the cells rather small and crowded, their margins not elevated ; zooids 

 with sixteen slender tentacles. Color ashy brown, or dull rusty brown. 



Diameter of branches, mostly o'"'" to 6.5'"'". Height, .250™"' to .375™'". 



Great Egg Harbor, New Jersey, to Vineyard Sound ; common in Long 

 Island Sound, near New Haven, in 1 to 5 fathoms; Thimble Islands ; 

 Watch Hill, Rhode Island, etc. 



Alcyonidium hirsutum Johnston, (p. 404.) 



British Zooph., ed. i, p. 303, Plate 42, figs. 1, 2 ; ed. ii, p. 360, Plate 69, figs. 1,2; 

 Smitt, op. cit., p. 496, Plate 12, figs. 3 to 8. Alcijoniiim hirsutum Fleming, Brit. 

 Anim., p. 517. 



Long Island Sound to the Arctic Ocean; Spitzbergen; northern 

 coasts of Europe to Great Britain. Savin Rock, near New Haven, low- 

 water ; Thimble Islands, in tide-pools, on Fucus, Phyllophora, etc. ; 

 Vineyard Sound; and Casco Bay. 



Alcyonidium hispidum Smitt. (p. 404.) 



Op. cit., p. 499, Plate 12, figs. 22 to 27, 1866. FJnstra hispida Fabricius, Fauna 

 Grcenl., p. 438, 1780 ; Johnston, Brit. Zooph., ed. ii., p. 363, Plate 66, fig. 5. 

 Flustrella hisjnda Gray, Brit. Mus. Catal., part i, p. 108. 



Long Island Sound to Greenland ; Finmark to Great Britain. Very 

 common at Savin Rock, near New Haven, at low water, encrusting 

 stones, Fucus, etc. ; Thimble Islands ; Watch Hill, Rhode Island ; Vine- 

 yard Sound ; Casco Bay ; Bay of Fundy, etc. 



Alcyonidium parasiticum Johnston, (p. 404.) 



British Zooph., ed. i, p. 304, Plate 41, figs. 4, 5 ; ed. ii, p. 362, Plate 68, figs. 4, 5 ; 

 Smitt, op. cit., p. 499, Plate 12, figs. 14-19. Alcyonium parasiticum Fleming, 

 Brit. Anim., p. 518. 



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

 Britain. Vineyard Sound, on Phyllopliora. 



