634 REPORT OF COMMISSIONER OF FISH AND FISHERIES. 



Bdelloura CANDIDA Girard. (p. 460.) 



Proceedings Boston Society Natural History, vol. Iv, p. 211, 1852. Vortex Can- 

 dida Girard, op. cit., vol. iii, p. 264, (for 1850), 1851. Bdelloura parasiticalueidj, 

 Proceedings Academy Natural Sciences of PhiladelpMa for 1851, vol. v, p. 242^ 

 1852; Stimpson, Prodromus, p. 6, 1857. 



Great Egg Harbor ; New Haven : Massacliusetts Bay. Parasitic on 

 the gills of the ^'horseshoe-crab'' (Limulus Folypliemus). 



Bdelloura rustica Leidy. 



Proceedings Acad. Natural Sciences of Philadelphia, vol. v, p. 242, 1852 ; 

 Stimpson, Prodromus, p. 6, 1857. 



Great Egg Harbor, on Ulva latisslma (Leidy). 



NEMATODES. 



PONTONEMA MARINUM Leidy. Plate XVIII, fig. 94. (p. 325.) 



Marine Invertebrate Fauna of Rhode Island and New Jersey, p. 12 (144), 1855. 

 Great Egg Harbor to New Haven and Vineyard Sound ; very abund- 

 ant from above low-water mark to 10 fathoms. 



PoNTONEMA VACILLATUM Leidy. (p. 326.) 



Marine Invertebrate Fauna of Rhode Island and New Jersey, p. 12 (144), 1855. 



Great Egg Harbor to Vineyard Sound, with the preceding. 



Various other small, free Nematodes are frequently met with, but 

 they have not been carefully examined. 



Numerous species are also parasitic in the stomach, intestine, muscles 

 and other organs of fishes, Crustacea, worms, &c. (See i^age 456.) 



MOI.I.USC A. 



CEPHALOPODA. 



DIBRANCHIATA. 



Ommastrephes ILLECEBROSA. (p. 441.) 



Loligo illecehrosa Lesueur, Journal Acad. Natural Sciences, Philadelphia, vol. ii, 

 p. 95, Plate 10, 1821 ; Gould, Invertebrata of Massachusetts, ed. i, p. 318, 

 1841 ; Dekay, Natural History of New York, Mollusca, p. 4, 1843. Ommasireplies 

 sagittatus Binney,* in Gould's Invertebrata of Mass., ed. ii, p. 510, 1870, but 

 not Plate 25, fig. 339 (ugh Lamarck, sp.) 



A large specimen, taken at Eastport, Maine, was ten inches long, ex- 

 clusive of the arms. When preserved in alcohol the caudal-fin was 

 rather more than one-third of the length of the head and body together j 

 its width was equal to about three-fourths of its length. The colors of 

 this specimen were described on page 442. A small specimen from 

 Newport, E. I., agrees in color and most other respects with the larger 

 specimens, but differs somewhat in tlie proportions, especiall}' of the 

 caudal fin, probably owing to its immaturity. This specimen, in alcohol, 



* Binney's, Plate xxvi, Figs. 341-344, erroneously referred to LoUgopsis 2)avo, appar- 

 ently represents this species. 



