724 EEPOET OF COMMISSIONER OF FISH AND FISHERIES. [2 6 J 



large, crowded, flesb-colored, determining tlie color of tlie body, in the 

 females, given above. 



In confiDeraent they were very active, moving about rapidly, and 

 throwing themselves into coils, alter the manner of Ehynchobolus. 



Length in contraction, 35 — SO""™. 



Greatest diameter — 1°"". 



They taper rapidly along a few of the anterior and posterior segments ; 

 otherwise the diameter is uniform. 



Found sparingly, burrowing in the finest sand of the harbor; half- 

 tide to low water. 



Family ARICIIDiE. 

 ABICIA {Savigny) Audouin and M. Edwards, 

 Aricia ornata Verrill. 

 Invert. An. of Vin, Sound, etc. , p. 596. 1874. 



Not common. A few very fine large specimens were taken at extreme 

 low water, in sandy mud. 



SCOLOPLOS Orsted. 



SCOLOPLOS ROBUSTA. 



Antliostoma rdbmtum Verkill. Op. cit. , p. 597, pi. xiv, fig. 76. 1874. 



Webstkr. Annel. Cha3t. of the Virginian Coast, p. 258. 1879. 



All the specimens taken were small. Sand ; low water. 



SCOLOPLOS FRAGILIS. 



Anihostoma fragile N'Enmix.. Op. cit., p. 598. 1874. 



Webster. Anuel. Chast. of Virginian Coast, p. 258. 1879. Of New 

 Jersey, p. 121. 1880. 



Common, especially at Wellfleet. Sand ; low water. 



Family OPHELIID^. 



OPLILIA {Savigny) M. Edwards. 



Ophelia limacina Sars. 



Ammotrr/pane limacina H. Rathke. Nov. Act. Nat. Cur. , vol. xxi, p. 190, pL x, figs. 4-8. 

 1840. 

 Grube. Fam. der Ann., p. 70. 1851. 

 KoREN. Nyt. Mag., vol. ix, p. 94 {teste Malmgren). 

 Johnston. Cat. Brit. Mus., p. 217. 1865. 

 QUATREFAGES. Hist. Nat. des Ann., vol. ii, p. 279. 1865. 

 Ophelia hicornis Orsted. Gronlands Annulata Dorsibranchiata, p. 32, figs. 104, 105, 115, 

 116,121. 1843." 



