INVERTEBRATE ANIMALS OF VINEYARD SOUND, ETC. 699 



Cod. Common in Casco Bay and Bay of Fundy, low-water to 100 

 fathoms. New Bedford, Massachusetts (L. Agassiz). 



Molgula Manhattensis Verrill. Plate XXXIII, fig. 250. (pp. 311, 



445.) 



Amer. Jour. Science, vol. i, p. 54, Jan., 1871; Tellkampf, Anuals Lye. Nat. Hist., 

 New York, vol. x, p. 83, 1872. Ascidia Manhattensis Dekay, Report on the Nat- 

 ural History of New York, Mollusca, p. 259, 1843 ; Binney, in Gould's Inverte- 

 hrata of Massachusetts, ed. ii, p. 25, 1870 (copied from Dekay). Ascidia 

 amphora Ag., MSS. ; Binney, op. cit., p. 25, Plate 24, fig. 333. 



North Carolina to Casco Bay, Maine. Yery common in Great Egg 

 Harbor, New Jersey, Long Island Sound, Buzzard's Bay, Vineyard 

 Sound, and Massachusetts Bay. Less common in Casco Bay. Great 

 South Bay, Long Island, abundant, (S. I. Smith). 



Molgula pellucida Verrill. (p. 426.) 



Amer. Jour. Science, vol. iii, p. 289, Plate 8, fig. 2, 1872. 



Body subglobular with a smooth, thin, pellucid test. Tubes termi- 

 nal, contiguous, much swollen at base, long, divergent, tapering, reticu- 

 lated within by longitudinal and circular white lines (muscular fibers). 

 Branchial aperture with six papillae. Intestine conspicuously visible 

 through the test ; stomach covered by deep orange -colored hepatic 

 glands. Ovaries large, whitish. Color of test, pale % hyaline bluish; 

 tubes toward the ends, dull neutral tint. 



Diameter of the largest specimens about 25 mm . 



North Carolina to Massachusetts Bay. Massachusetts Bay (L. Agas- 

 siz). Long Island (Coll. Peabocly Academy of Science). Bird Shoal 

 near Beaufort, North Carolina (Dr. H. C. Yarrow). 



Mr. Binney has published (Plate 22, figs. 315, 316) characteristic col- 

 ored figures of this species under the name of M. producta (Stimpson), 

 which is a very different, sand-covered species. 



Molgula producta Stimpson. (p. 502.) 



Proc. Boston Society Natural History, vol. iv, p. 229, 1852 ; Verrill, op. cit., p. 289, 

 Plate 8, fig. 6, 1872; Binney, in Gould, p. 21 (not the figures, which are 

 M. pellucida). 



Off Buzzard's Bay, 25 fathoms, sandy. Massachusetts Bay, low-water 

 to 6 fathoms, (Stimpson). 



Molgula arenata Stimpson. Plate XXXIII, fig. 251. (p. 419.) 



Proc. Boston Soc. Nat. Hist., vol. iv, p. 230, 1852 ; Binney, in Gould, Iuvert., ed. 

 ii, p. 21 ; Verrill, Amer. Jour. Sci., vol. iii, Plate 8, fig. 5, 1872. 



Long Island Sound, near New Haven, 3 fathoms, sand ; Vineyard 

 Sound and Buzzard's Bay, 5 to 15 fathoms, sand and gravel. Nan- 

 tucket (Stimpson). 



Molgula papillosa Verrill. (p. 495.) 



Amer. Jour. Science, vol. i, p. 57, fig. 4, b, 1871 ; op. cit., vol. iii, p. 211, Plate 8, fig. 

 4, 1872. 



Body free, nearly globular, or transversely suboval, usually slightly 



