340 REPORT OF COMMISSIONER OF FISIL AND FISHERIES. [634] 
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. Baelloura parasitica Leidy, 
Proceedings Academy Natural Sciences of Philadelphia for 1851, vol. v, p. 242, 
1252; Stimpson, Prodroius, p. 6, 1857. 
Great Egg Harbor; New 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; 
Stimpson, Prodromus, p. 6, 1757. 
Great Egg Harbor, on Ulva latissima (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), 1455. 
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 page 456.) 
MOLLUSCA. 
CEPIALOPODA. 
DIBRANCHIATA. 
OMMASTREPHES ILLECEBROSA. (p. 441.) 
Loligo illecebrosa Lesneur, Journal Acad. Natural Sciences, Philadelphia, vol. ii, 
p. 95, Plate 10, 1821; Gould, Invertebrata of Massachusetts, ed. i, p. 318, 
141; Dekay, Natural History of New York, Mollusca, p. 4, 1843. Ommastrephes 
sagittatus Binney,~ in Gould’s Invertebrata of Mass., ed. ii, p. 510, 1870, but 
not Plate 25, fig. 339 (non 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 ; 
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, R. I., agrees in color and most other respects with the larger 
specimens, but differs somewhat in the proportions, especially of the 
caudal fin, probably owing to its immaturity. This specimen, in alcohol, 
* Binney’s, Plate xxvi, Figs. 341-544, erroneonsly referred to Loligopsis pavo, appar- 
ently represents this species. 
