402 REPORT OF COMMISSIONER OF FISH AND FISHERIES. 



This species was described by Dr. Stimpson from specimens taken at 

 Norfolk, Ya., and has since been collected by Professors Smith and Yer- 

 rill at Great Egg Harbor!, N. J., in 1 fathoms shells and mud; by the 

 U. S. Fish Commission in Long Island Sound!, especially at Noank 

 Harbor !, among eel-grass (Zoster a marina) and mud ; off Block Island ! 

 in 17 to 19 fathoms sand, mud, and stones ; at Yineyard Sound !, at low 

 water and in sand, and in 1878 at Gloucester !, Mass., in mud and among 

 algae. 



Specimens examined. 



Paranthura Bate and Westwood. 



% 



Paranthura Bate and Westwood, Brit. Sess. Crust., vol. ii, p. 163, 1866. 

 Pleon articulated, composed of six segments; thorax deeply con- 

 stricted at each end of the second segment ; antennulae and antennae 

 subequal; palpus of maxillipeds three-jointed; inner maxillae acicular. 



The first character given above is the only one given by Bate and West- 

 wood, who, however, mention that the pleon bears the normal number 

 of pleopods; a character that would not distinguish our species from the 

 other genera. The distinctly articulated flagellum of the antennulae is 

 provided with a partial whorl of bristles, which, however, forms only the 

 most rudimentary approach toward the structure of those organs in the 

 males of the following genus. The segmentation of the pleon is indis- 

 tinct in the dorsal region, but is apparent at the sides when seen from 

 above, and the pleon does not at all resemble an additional thoracic 

 segment as in Anthura. Both pairs of antennae are provided in our 

 species with a distinctly articulated flagellum, and are of nearly equal 

 length. 



Paranthura brachiata Harger (Stimpson). 



Anthura bracliiala Stimpson, Mar. Inv. G. Manan, p. 43, 1853. 



Verrill, Am. Jour. Sci., III, vol. v, p. 101, 1873; ibid., vol. vii, pp. 42, 411, 

 502, 1874 ; Proc. Am. Assoc., 1873, pp. 350, 357, 1874 ; This Report, part i, 

 p. 511 (217), 1874. 

 WMteaves, Am. Jour. Sci., Ill, vol. vii, p. 213, 1874 ; Further Deep-sea 



Dredging, Gulf of St. Lawrence, p. 15, "1874." 

 Harger, This Report, part i, p. 573 (279), 1874. - 

 Smith and Harger, Trans. Conn. Acad., vol. iii, p. 16, 1874. 

 Paranthura brachiata Harger, Proc. U. S. Nat. Mus., 1879, vol. ii, p. 162, 1879. 



