A. E. Verrill — Additions to the Fauna of the Bermudas. 39 



Arenieola cristata Stimpson. 



Proceedings Boston Soc. Nat. Hist., v, p. 114. Webster, Bull. U. S. Nat. Mus., 

 No. 25, p. 323, 1884. 



This large species was very common at low-tide and down to three 

 fathoms at several localities, especially at Long Bird Island on the 

 flats. Castle Harbor at Waterloo and Tuckers Town, at Hungry 

 Bay, etc. It makes a conspicuous burrow, at the mouth of which 

 there is usually a long cylindrical or coiled roll of mucus, nearly an 

 inch in diameter. 



Fallacia protochona (Schmarda) Quatr. 



Hesione jirotochona Schmarda, Neue Wirb. Thiere, I, p. 79, pi. xxviii, fig. 

 226, 1861. Qtiatrefages, Hist. Nat. des Ann., II, p. 98, 1865. Webster, op. 

 cit., p. 311, pi. viii, fig. 21, 1884. 



Plate VIII. Figure 5. 



Some large and fine specimens of this species were taken in 1901. 

 Some of them were at least six inches (150 mm ) long while living. 

 They were mostly found under stones at low-tide at Hungry Bay, 

 the Scaur, Cony Island, Castle Harbor, etc. 



Some of the largest were found swimming rapidly at the surface, 

 by rapid undulations of the body. 



In life the color is pale brownish yellow, striped longitudinally 

 with many fine dark brown lines. 



GEPHYBJEA. 



Sipxvnculus nudus Linne" (?) 



Selenka in Semper's Eeisen in den Philippinen, ii, Bd. iv, 1883. 

 Ward, Bull. Mus. Comp. Zool., xxi, pp. 147-182, 1891. 



A large species, 200 to 250 mm in length and 15 to 20 mm in diameter 

 when expanded. It contracts variously in formalin, sometimes to 

 a cylindrical form, 150 mm in length and 10 to 12 mm in diameter ; in 

 other cases the middle of the body is much narrower and both ends 

 are bulbous. 



The body is longitudinally sulcate, with about 32 grooves, sepa- 

 rating wider muscular bands. These are crossed by numerous circu- 

 lar grooves and bands, which divide the surface into more or less 

 conspicuous squarish or oblong areas, which are often distinctly 

 raised, especially posteriorly. The posterior end is suddenly tapered 

 to an obtuse point, the tapered portion being nearly smooth, but 

 longitudinally sulcated ; that portion of the base of the proboscis 

 which is visible is closely covered with small broad-based, obtuse, 

 conical, pale brown verrucoe. 



