[557] INVERTEBRATE ANIMALS OF VINEYARD SOUND, ETC. 263 
LAPHYSTIUS STURIONIS Kroyer. (p. 457.) 
Nat. Tidsskriff, vol. iv, p. 157, 1842. Darwinia compressa Bate, Report Brit. Assoc., 
1855, p. 58; Catalogue Amphip. Crust., Brit. Mus., p, 108, Pl. 17, fig. 7; Bate 
and Westwood, Brit. Sessile-eyed Crust. vol. i, p. 184, wood cut. 
A parasitic amphipod, apparently quite identical with this species of 
Europe, was found in the mouth of a goose-fish (Lophius Americanus) 
taken in Vineyard Sound. <A species, apparently the same, was also 
taken from the back of a skate (Raia levis) in the Bay of Fundy the 
past summer. It is readily distinguished by its broad depressed form, 
and by having the third to fifth pairs of legs very stout and their distal 
segments forming powerful talon-like claws, while the first and second 
pairs are small and slender. 
CALLIOPIUS LAVIUSCULUS Boeck. (p. 315.) 
Crust. Amphipoda borealia et arctica, p. 117, 1870. Amphithoé lavinscula Kroyer 
Gronlands Amfipoder, p. 53, Pl. 3. fig. 13,1838. Calliope lwvinscula Bate, Cata- 
logue Amphip. Crust. Brit. Mus., p. 148, Pl. 28, fig. 2, 1862; Bate and Westwood, 
op. cit., vol. i, p. 156, wood cut. 
Vineyard Sound and northward to Greenland, Northern Europe, and 
Spitzbergen. 
PONTOGENEIA INERMIS Boeck. (p. 452.) 
Op. cit., p. 114, 1870. Amphithoé inermis and crenulata, Kroyer, Grénlands Am- 
fipoder, pp. 47, 50, Pl. 3, figs. 11, 12, 1838. Jphimedia vulgaris Stimpson, 
Marine Invertebrata of Grand Manan, p. 53, 1853. Atylus inermis, crenulatus, 
and vulgaris Bate, Catalogue Amphip. Crust. Brit. Mus., pp. 1388, 139, 142, Pl. 27, 
figs. 5,6, 1862. <Atylus vulgaris Packard, Memoirs Boston Soe. Nat. Hist., vol. 
i, p. 298, 1867. (Not Atylus (Paramphitoé) inermis Packard, loc. cit., p. 298, Pl. 
8, fig. 3.) 
Taken at the surface in Vineyard Sound, in March, by Mr. V. N. Ed- 
wards. It is abundant, in company with Calliopius leviusculus, about 
the Bay of Fundy in pools left by the tide, and ranges north to Labra- 
dor and Greenland. 
GAMMARUS ORNATUS Edwards. Plate IV, fig. 15. (p. 314.) 
a 
Annales des Sci. nat., tome xx, 1830, p. 367, Pl. 10, figs. 1-10; Hist. nat. des 
Crust., tome iii, p. 47; Bate, op. cit., p. 212, Pl. 37, fig. 8. Gammarus locusta 
Gould, op. cit., p.334. Gammarus puler Stimpson, Marine Iuvert. Grand Manan, 
p- 5d. 
New Jersey to Greenland. 
GAMMARUS ANNULATUS Smith, sp. nov. (p. 514.) 
Anterior margin of the head produced each side beneath the anten- 
nule into a truncated lobe, which extends farther forward than in G. 
ornatus ; eyes scarcely reniform, less elongated than in G. ornatus, and 
their lower margins not reaching, by considerable, the anterior border 
of the truncated lobe. Antenne longer than the antennule; the ulti- 
mate segment of the peduncle longer than the penultimate ; the flagel- 
lum much more slender, the segments more elongated and with fewer 
hairs, than in G. ornatus. Hands of the first pair of legs more elongated 
than in G. ornatus, and the palmary margins very oblique. Propodus in 
