422 REPORT OF COMMISSIONER OF FISH AND FISHERIES. [716] 
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 Verrill, Proc. Boston Soc. Nat. Hist., vol. x, p. 345, 1866. 
Vineyard Sound to Chelsea, Massachusetts. Sometimes abundant on 
Chelsea Beach, after storms. Wood’s Hole (H. E. Webster). Selenka 
gives “Grand Manan” (? from specimens in Mus. Comp. Zodl.), but 
after very careful search during several excursions to that island, I have .- 
never been able to find it there, and believe this tobe anerror. Stimp- 
son knew it only from Massachusetts Bay. 
LEPTOSYNAPTA GIRARDI Verrill. Plate XXXV, 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 tenwis 
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. (?) Synapta gracilis 
Selenka, op. cit., p. 363, Plate 20, figs. 123, 124. 
New Jersey to Massachusetts Bay. Common in Long Island Sound, 
at Savin Rock, and other localities near New Haven, in sand at low- 
water; abundant in Vineyard Sound, on Naushon Island, ete.; Cape 
Cod; Chelsea Beach, Massachusetts. Sag Harbor, Long Island, 
(Ayres). Selenka erroneously gives “Cape Florida” as the locality for 
S. Girardit. It was based on Massachusetts specimens. 
LEPTOSYNAPTA ROSEOLA Verrill, sp. nov. (p. 362.) 
Body long, slender; integument translucent, filled with pumerous 
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 100™™ to 
150"; diameter about 5™™ to 6™™, 
Long Island Sound, at Savin Rock, near New Haven; Vineyard 
Sound. at Naushon Island; in sand at low-water mark. 
ECHINOIDEA. 
STRONGYLOCENTROTUS DROBACHIENSIS A. Agassiz. Plate XXXV, 
figs. 368. (p. 406.) 
Revision of the Echini, Parts I and II, pp. 162, 277, Plate 4, figs. 2-4, Plate 9, 
Plate 10, 1872. Lchinus Drébachiensis Miiller, Zo6l. Dan. Prod., p. 235, 1776, 
Toxopneustes Drobachiensis Agassiz, Catal. Rais., in Annal. des Sci. Nat., vol. vi. 
p. 367, 1846. Huryechinus Drébachiensis 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. Hchinus neglectus Lamarck, Anim. sans yert., p. 
49,1816. Hchinus granularis Say, Journ. Acad. Nat. Sci., Philad., vol. vy, p. 
225, 1827 (non Lamarck). Zchinus granulatus Gould, Invert., ed. i, p. 344, 
1841. Huryechinus granulatus Verrill, Proc. Boston Soc., vol. x, pp. 340, 352. 
Strongylocentrotus chlorocentrotus Brandt, Prodr., p. 264, 1835. 
Circumpolar: New Jersey to the Arctic Ocean; Spitzbergen to Great 
