[557] INVERTEBRATE ANIMALS OF VINEYARD SOUND, ETC* 263 



LAPHYSTIUS STURIONIS Kroyer. (p. 457.) 



Nat. Tidsskrift, vol. iv, p. 157, 1842. Darwinia compressa Bate, Report Brit. Assoc., 

 1855, p. 58 ; Catalogue Ampbip. 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 (Kaia lewis) 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 L^VIUSCULUS Boeck. (p. 315.) 



Crust. Ampbipoda borealia et arctica, p. 117, 1870. Amphithoe Icvvinscula Kroyer 

 Gronlands Amtipoder, p. 53, PI. 3. fig. 13, 1838. Calliope Icevinsoula Bate, Cata 

 logue Ampbip. Crust. Brit. Mus., p. 148, PI. 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. 



PONTOGrENEIA INERMIS Boeck. (p. 452.) 



Op. cit., p. 114, 1870. Amphithoe inermis and crenulata, Kroyer, Gronlaiids Am- 

 fipoder, pp. 47, 50, PI. 3, figs. 11, 12, 1838. Iphimeclia vulgaris Stimpsoii, 

 Marine Invertebrata of Grand Mauan, p. 53, 1853. Atylus inermis, crenulatus, 

 and t M^am Bate, Catalogue Ampbip. Crust. Brit. Mus., pp. 138, 139, 142, PI. 27, 

 figs. 5,6, 1862. Atylus vulgaris Packard, Memoirs Boston Soc. Nat. Hist., vol. 

 i, p. 298, 1867. (Not Atylus (Paramphitoe) 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 Calllopius Icuviusculus, 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.) 



Ann ales 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. Gammarmpu-lex Stimpson, Marine Invert. Grand Mauau, 

 p. 55. 



New Jersey to Greenland. 



GAMMARUS ANNULATUS Smith, sp. uov. (p. o!4.) 



Anterior margin of the head produced each side beneath the an ten - 

 uulae into a truncated lobe, which extends farther forward than in G. 

 ornatus; eyes scarcely reniform, less elongated than in G. ornatus y aiid 

 their lower margins not reaching, by considerable, the anterior border 

 of the truncated lobe. Antennas longer than the antenuulas ; 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 



