312 REPORT OF COMMISSIONER OF FISH AND FISHERIES. 



Phryxus abdominalis Liljoborg (Kroyer). 



Bopyrua aMominaUs Kroyer, Nat. Tidsskr., vol. ii, pp. 102, 289, pis. i, ii, 1840; 

 Monog. Fremst. Slsegten Hippolyte's nordiske Arter, p. 263, 1842 ; Voy. 

 en Scand., Crust., pi. xsis, fig. 1, 1849. 

 Phryxus llippohjtes Ratbke, Fauna Norwegens, p. 40, pi. ii, figs. 1-10, 1843. 

 Phryxus abdominalis Liljeborg, ffifvers. Kongl. Vet.-Akad. Fcirh., ix, p. 11, 1852. 

 Steenstrup and Liitken, Videusk. Meddelelser, 1861, p. 275 (9). 

 Bate and West wood, Brit. Sessile-eyed Crust., vol. ii, p. 234, 1868. 

 Norman, Rei). Brit. Assoc., 1868, p. 288, 1869; Proc. Royal Soc., London, 



vol. XXV, p. 209, 1876. 

 Buchliolz, Zweite deutsche Nordpolfalirt, ji. 287, 1874. 

 Metzger, Nordseefakrt der Pouim., p. 286, 1875. 

 Miers, Ann. Mag. Nat. Hist., IV, vol. xx, p. 65 (15), 1877. 

 Smith in Harger, Proc. U. S. Nat. Mus., 1879, vol. ii, p. 158, 1879. 



Massachusetts Bay!, off Salein, on Pandalus borealis, Hippolyte spinus, 

 and H. securifrons, 48-90 fathoms, soft mud, August 13 and 14, 1877 ; 

 also, on Pandalus 3Iontagui, 35 fathoms, mud and clay nodules, Au- 

 gust 10, 1877. Cashe's Ledge !, Gulf of Maine, on Hippolyte pusiola^ 

 27 and 39 fathoms, rocky, September 5, 1874. Halifax !, Nova Scotia, 

 on Hippolyte pusiola, 18 fathoms, fine sand, September 4, 1877; also, on 

 H. spiiius. About 30 miles south of Halifax !, on Hippolyte securifrons, 

 100 fathoms, fine sand, September 6, 1877. 



GrinneU Land, in north latitude 79° 29'; and "Discovery Bay," north, 

 latitude 81° 44' (Miers). Greenland (Kroyer et al.). British Islands 

 (Norman et al.). Scandinavian coast ! (Liljeborg et al.). Spitzbergeu 

 (Miers). 



Dajus Mysidis Kroyer. 



Dajus Mysidis Kroyer, Voy. en Scand., Crust., pi. xxviii, fig. 1, 1849. 

 Liitken, Crustacea of Greenland, p. 150, 1875. 



? G. O. Sars, Ai'cli. Math. Nat., B. ii, p. 354 [254], 1877 ("D. Mysidis f"). 

 Smith in Harger, Proc. U. S. Nat. Mus., 1879, vol. ii, p. 158, 1879. 

 Bopyrus Mysidum Packard, Mem. Bost. Soc. Nat. Hist., vol. i, p. 295, pi. viii, 



fig. 5, 1867. 

 t Leptophryxus Mysidis Buchholz, Zweite Deutsche NordpoKahrt, p. 288, pi, ii, 

 fig. 2. 1874. 



Labrador (Packard). Greenland (Kroyer, Buchholz). ? Off west 

 coast of Norway (G. O. Sars). 



Bopyrus, species. 



Bojjyrus Leidy, Proc. Acad. Nat. Sci., 1879, pt. ii, p. 198, 1879. 

 ? Smith, Trans. Conn. Acad., vol. v, p. 37, 1879. 



A species of Bopyrus is mentioned by Dr. Leidy as " a parasite of 

 the shrimp, Palwmotietes vulgaris,^^ occuriug in the summer of 1879, at 

 Atlantic City, N. J. 



HI.— ASELLID^. 



Antennae elongated with a multiarticulate flagellum ; legs ambulatory 

 or prehensile, not strictly natatory ; pleon consolidated into a scutiform 

 segment, bearing terminal uropods, which may be nearly obsolete. 



This family is represented on our coast by four species belonging to 



