46 Smith and Harger — St. George's Banks Dredging s. 



Bay; Cashe's Ledge; and in the Bay of Fimdy, 10 to 106 fathoms. — 



A. E. y. 



Protula media stimpson. 



Marine Invertebrata of Grand Manan, p. 30, 1853. 



Plate VI. 



This species usually forms much contorted and irregularly bent 

 tubes, which are cylindrical and nearly smooth, but with irregular 

 lines of growth. 



North of Saint George's Bank, 110 fathoms (locality o). Often 

 brought up by fishermen on Saint George's Bank, attached to shells 

 and stones. Abundant on Cashe's Ledge, 50 to 70 fathoms ; ofi" 

 Grand Menan, 30 to 50 fathoms ; oif Casco Bay. — A. E. V. 



? Protula borealis Sars. 



Vidensk. Selsk. Forhandlinger, 1871, p. 417 (separate copies, p. 14). 



Numerous empty tubes from the muddy bottoms in 110 and 150 

 fathoms (localities o and s) diifer considerably in form from those of 

 the P. media., ordinarily met with, and may be this species, if distinct. 

 But they may, very likely, prove to be only a variation of the former, 

 due to the muddy character of the bottom. The tubes are much less 

 bent and contorted, often but slightly curved, or nearly straight, 

 nearly smooth, but with occasional ridges or folds, indicating periods 

 of growth. — A. E. V. 



Gephteea. 



Phascolosoma CSementarium Verrill (Quatrefages sp.). 

 American Journal of Science, III, vol. v, p. 99, 1873 ; and Report upon the Inverte- 

 brate Animals of Vineyard Sound, in Report of U. S. Commissioner of Fish and 

 Fisheries, part I, 1873, p. 627, pi. xviii, fig. 92, 1874. 



Very common on the coast of New England, from Long Island 

 Sound northward, in 5 to 430 fathoms, in dead univalve shells. 



Phascolosoma tubicola Verriii. 



American Journal of Science, III, vol. v, p. 99, 1873; Proceedings American Asso- 

 ciation for Advancement of Science, 1873, p. 388, 1874. 



Body versatile in form ; in contraction short, cylindrical, oval or 

 fusiform, 12 to 25'""' long, 2-5 to 4""" in diameter; in full extension 

 the body is moi-e or less fusiform, gradually tapering anteriorly into 

 the long, slender, nearly cylindrical retractile portion, which is longer 

 than the rest of the body, and bears, near the end, a circle of about 

 ten to sixteen simple, slender tentacles, beyond which the terminal 



