ECHINODERMATA. 11 



HOLOTHURIOIDEA. ACTINOPODA. 



DENDROCHIROTAE. 



Anaperus iinisemita Stimpson, Proc. Boston soc, nat. hist., 



1851, vol. 4, p. 8. "Geaistd Bank, and the <;oast or New 



England." 



Narragansett Bay, South Shoals of Nantucket, and north- 

 ward ; in 10 fathoms or more. 



36 (9). Thyonidium productitm (Ayres) Stimpson. 



Stimpson, Invert. Grand Manan, 1853, p. 17. 



Duasmodactyla producta Ayres, Proc. Boston soc. nat. hist., 



1852, vol. 4, p, 244. ^'Eastpoet, Me." 



Eastport, Maine (Ayres), Casco Bay, Maine (Kingsley). 

 Depth? 



37 (10). Thyonidium pellucidum (O. F. MiiUer) Dllben & 



Koren. 



Dilben & Koren, Kgl. vet.-akad. Handl. for 1844, 1846, p. 

 303, pi. 4, figs. 15-17, pi. 11, fig. 57. 



Holothuria pellucida O. F. MiiUer, Zool. Dan. Prod., 1806, 

 vol. 4, p. 17, pi. 135, fig. 1. "In arvenosis submarinis locis 



IN NORLANDIA." 



Casco Bay, Maine (Kingsley, as Thyonidium hyalimmi). 

 Depth ? 



38 (11). PsoLus PHANTAPUS ( Strusscnfeldt) Forbes. 



Forbes, Hist. Brit. Starfishes, 1841, p. 203, fig. 

 Holothuria phantapus Strussenfeldt, Abh. kgl. Schurd. akad., 

 wiss., 1767, vol. 27, p. 268-275, pi. 10. ''zwischen Lands- 



KKONA UND HwEN." 



Massachusetts Bay, and northward ; low water mark to far 

 beyond the 50 fathom line. 



39 (12). PsoLus EABRicii (Dtlben & Koren) Liltken. 



Kingsley, Mem. Peabody acad. sci., 1881, vol. 1, p. 1-14, 

 pi. 1, figs. 1-5 ; pi. 2, figs. 6-12. 



