716 REPORT OF COMMISSIONER OF FISH AND FISHERIES. 



Sea-Side Studies, p. 97, fig. 126. Chirodota arenata Gould, Invert, of Mass., ed. 

 i, p. 346, (figure), 1841 ; Ayres, op. cit., p. 143 ; Pourtales, op. cit., p. 13. Caudina 

 (Molpadia) arenata Yerrill, Proc. Boston Soc. Nat. Hist., vol. x, p. 345, 1866. 



Yineyard Sound to Chelsea, Massachusetts. Sometimes abundant on 

 Chelsea Beach, after storms. Wood's Hole (H.E.Webster). Selenka 

 gives '' Grand Manan " (1 from specimens in Mus. Comp. ZooL), but 

 after very careful search during several excursions to that island, I have 

 never been able to find it there, and believe this to be an error. Stimp- 

 son knew it only from Massachusetts Bay. 



Leptosynapta Girardii Yerrill. Plate XXXY, figs. 265, 266. (p. 

 361.) 



Synapta Girardii Pourtales, Proc. Amer. Assoc. Adv. Science, for 1851, p. 14. 

 Leptosynapta tenuis Verrill, Trans. Conn. Acad., vol. i, p. 325. Synapta tenuis 

 Ayres, op. cit., p. 11, 1851, (non Quoy and Gaimard) ; A. and E. C. Agassiz, 

 Sea-Side Studies, p. 95, figs. 124, 125 ; Verrill, Proc. Boston Soc. Nat. Hist., vol. 

 X, p. 342. Synapta Ayresii Selenka, op. cit., p. 362, 1867. (f ) Synapta gracilis 

 Selenka, op. cit., p. 363, Plate 20, figs. 123, 124. 



Kew Jersey to Massachusetts Bay. Common in Long Island Sound, 

 at Savin Eock, and other localities near New Haven, in sand at low- 

 water ; abundant in Yineyard Sound, on Naushon Island, etc. ; Cape 

 Cod; Chelsea Beach, Massachusetts. Sag Harbor, Long Island, 

 (Ayres). Selenka erroneously gives " Cape Florida" as the locality for 

 8. Girardii. It was based on Massachusetts specimens. 



Leptosynapta roseola Yerrill, sp. nov. (p. 362.) 



Body long, slender; integument translucent, filled with numerous 

 minute, scattered, opaque, light-red spots, oval or sub-circular in form ; 

 perforated plates smaller than in the preceding species ; anchors rela- 

 tively much longer, with a very slender, elongated shank. General 

 color, rosy or pale red, due to the minute red spots. Length lOO'"'" to 

 150"^"^; diameter about 5^^ to 6"°^. 



Long Island Sound, at Savin Eock, near New Haven; Yineyard 

 Sound, at Naushon Island ; in sand at low-water mark. 



ECHINOIDEA. 



Strongylocentrotus Drobachiensis a. Agassiz. Plate XXXY, 

 figs. 368. (p. 406.) 



Revision of the Echini, Parts I and II, pp. 162, 277, Plato 4", figs. 2-4, Plate 9, 

 Plate 10, 1872. Ecliinus Brobacliiensis Miiller, Zoiil. Dan. Prod., p. 235, 1776, 

 Toxopneusles DrohacMensis Agassiz, Catal. Rais., in Annal. des Sci. Nat., vol. vi. 

 p. 367, 1846. Euryechinus Drobachiensis Verrill, Proc. Boston Soc. Nat. Hist, 

 vol. X, pp. 341, 352, 1866; Trans. Conn. Acad., vol. i, p. 304, 1867; American, 

 Jour. Science, vol. xlix, p. 101. Echinus neglectus hMnnrck, Anini. sans vert., p. 

 49, 1816. Ecliinus granularis Say, Journ. Acad. Nat. Sci., Philad., vol. v, p. 

 225, 1827 {non Lamarck). Echinus granuJatus Gould, Invert., ed. i, p. 344, 

 1841. Euryechinus granulatus Verrill, Proc. Boston Soc, vol. x, pp. 340, 352. 

 Strong ylocentrotus chJoroceuirotus Brandt, Prodr., p. 264, 1835. 



Circumpolar; New Jersey to the Arctic Ocean; Spitzbergen to Great 



