634 EEPOKT OF COMMISSIONER OF FISH AND FISHERIES. 



Bdelloura CANDIDA Girard. (p. 4G0.) 



Proceedings Bostou Society Natural History, vol. iv, p. 211,1852. Vortex cmi^ 

 dUla Girard, op. cit., vol. iii, p. 2G4,^or 1850), 1851. Bdelloura i)arasiticalje\i\.Y , 

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

 1852; Stimj)son, Prodromus, p. 6, 1857. 



Great Egg Harbor ; IsTew Haven : Massachusetts Bay. Parasitic on 

 the gills of the "horseshoe-crab" {Limulus Polyphemus). 



Bdelloura rustica Leidy. 



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

 Stimjtsou, Prodromus, j). 6, 1857. 



Great Egg Harbor, on Ulva latissima (Leidy). 



NEMATODES. 



PoNTONEMA MARiNUM Leidy. Plate XVIII, fig. 91. (p. 325.) 



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

 Great Egg Harbor to New Haven and A'ineyard Sound; very abund- 

 ant from above low-water mark to 10 fathoms. 



PONTONEMA VACILLATUM Leidy. (p. 32G.) 



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

 Great Egg Harbor to Vineyard Sound, with the i^receding. 



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 iisbes, Crustacea, worms, «&c. (See page 456.) 



MOLLUSCA. 



CEPHALOPODA. 



DIBRANCHIATA. 



Ommastrephes ILLECEBROSA. (p. 441.) 



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

 p. 95, Plate 10, 1821 ; Gould, luvertebrata of Massachusetts, ed. 1, p. 318, 

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

 sagittal us Binney.* in Gould's Invertebrata of Mass., ed. ii, p. 510, 1870, hue 

 not Plate 25, fig. 339 {iion Lamarck, sp.) . 

 A large specimeu, 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 ; 

 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, especially of the 

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



* Binney's, Plate xxvi. Figs. 341-344, erroneously referred to LolUjopsis paro, appar- 

 ently represents this species. * 



