INVERTEBRATE ANIMALS OF VINEYARD SOUND, ETC. 557 



Laphystius Sturionis Kroyer. (p. 457.) 



Nat. Tidsskrifti, vol. iv, p. 157, 1842. Darwinla compresm Bate, Report Brit. Assoc, 



1855, p. 58 ; Catalogue AmpLip. Crnst., Brit. Mus., p, 108, PL 17, fig. 7 ; Bate 



and Westwood, Brit. Sessile-eyed Crust, vol. i, p. 184, wood cut. 



A parasitic ampliipod, apparently quite identical with this species of 



Europe, was found in the mouth of a goose-iish {Lophlnti Americanus) 



taken in Vineyard Sound. A species, apparently th6 same, was also 



taken from the back of a skate {Kaia Iccvis) 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 LJEViuscuLUS Hocck. (p. 315.) 



Crust. Ampbipoda borealia et arctica, p. 117, 1870. Jmphitlioe la-viiiscula Kroyer 

 GriJulands Auifipoder, p. 53, PI. 3. tig. 13, 1838. CaUio2)e hvrinscula Bate, Cata- 

 logue Ampliip. Crust. ]5rit. Mus., p. 148, PI. 28, fig. 2, 1862 ; Bate aud Westwood, 

 op. cit., vol. i, ]}. 156, wood cut. 

 Vineyard Sound and northward to Greenland, Northern Europe, and 

 Spitzbergen. 



PONTOGENEIA INERMIS Boeck. (p. 452.) 



Op. cit., p. 114, 1870. JmpMlhoe inermis aud creindata, Kroyer, Griinlands Am- 

 fipoder, pp. 47, 50, PI. 3, figs. 11, 12, 1838. IphimecUa vulgaris Stimpsou, 

 Mariue Invertebrata of Graud Mauau, p. 53, 1853. Atylus inermis, cvenulatas, 

 and vulgaris 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 Afi/lus (Farampkitot) inermis Packard, loc. cit., p. 298, PI. 

 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 Iccvlusculus, 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.) 



Auuales des Sci. nat., tome xx, 1830, p. 3S7, PI. 10, figs. 1-10 ; Hist. uat. des 

 Crust., tome iii, p. 47 ; Bate, op. cit., p. 212, PI. 37, fig. 8. Gammarus locusta 

 Gould, op. cit., p. 334. Gammarus pulex Stimpsou, Marine Invert. Graud Manan, 

 p. 55. 



New Jersey to Greenland. 



Gammarus annulatus Smith, sp. nov. (p. 314.) 



Anterior margin of the head produced each side beneath the anten- 

 nuhe 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. Antenna; longer than the anteunuhe ; 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 



