ECHINODERMATA. 13 



HOLOTHURIOIDEA. ACTINOPODA. 



MOLPADIIDAE. 



17, p. 473. "Bay of Fundy, .... Massachusetts Bay, 40- 



100 FATH., SOFT MUD, .... GuLF OF MaINE, .... CaSCO BaY .... 



OFF Nova Scotia, .... Gulf of St. Lawrence." 



Massachusetts Bay and northward ; in 40 fathoms or more. 



PARACTINOPODA. 

 SYNAPTIDAE. 



44 (17). Synapta inhaerkns (O. F. Mtiller) Dtiben & Koren 



Common Synapta. 



Clark, Bull. U. S. fish comm. for 1899, 1901, vol. 19, p. 28, pi. 

 10, fig. 3, pi. 11, figs. 1, 3, 5, 7. 



Holotlwria inhaerens O. F. Mtiller, Zool. Dan. Prod. 1776, p. 

 232. 



Long Island Sound and northward ; low water mark to far 

 beyond the 50 fathom line. 



45 (18). Sykapta roseola (Verrill) Theel. 



Clark, Bull. U. S. fish comm. for 1899, 1901, vol. 19, p. 24, pi. 

 10, figs. 1-2, pi. 11, figs. 2, 4, 6, 8. 



Leptosynapta roseola Verrill, Invert, anim. Vineyard Sound, 

 1873, p. 716. "Long Island Sound, at Savin Rock, near 

 New Haven; Vineyard Sound, at Naushon Island; in 

 sand at low-water mark." 



Cape Cod and southward ; near low water mark. 



46 (19). Chiridota laevis (Fabricius) Grube. 



Duncan & Sladen, Echinod. Arctic Sea, 1881, p. 12, pi. 1, 

 figs. 14-19. 



Holotlwria laevis Fabricius, Fauna Groenlandica, 1780, p. 353. 

 "ad scupulos maris in fundo argilloso." 



Massachusetts Bay and northward ; low water mark to 45 

 fathoms. 



