A. E. Yerrill — 3Iarine Nemerteans of New England, etc. 415 



Family, Dkepanophorid.e Verrill, nov. 



AmpliiporidcR (pars) authors. 



Probosfis-slieath provided with c;i?cal appendages. Central arma- 

 ture of proboscis a lamelliform [)late bearing a number of small 

 stylets on its edge. Lateral stylet-sacs more than two ; often nu- 

 merous, containing small nail-shaped stylets. 



Drepanophorus Hubrecht. 



Body^ and head nearly as in Aniphiporas; mouth-o[)ening separate 

 from the proboscis-pore. Proboscis large. Musculature of thp body^- 

 Avall as in Amphiporat!. 



Drepanophorus Lankesteri Hubrecht. 



Voyage of the Challenger, vol. xix, pp. 18, 50, pi. i, fig. 22; pi. ix, tigs. 1, 2, 10; 

 pi. X, figs. 2, 4; pi. xii, fig. 5; pi. xiv, flgs. 9, 10; pi. xv, fig. 13, 1887. 



This species was described from alcoholic specimens, destitute of 

 the proboscis. Its external features are, therefore, entirely unknown. 

 Its anatomy^ was, however, carefully worked out by means of sec- 

 tions. 



It is peculiar in having numerous well marked ti'ansverse ner- 

 vous commissures connecting the lateral nerve-trunks anteriorly. 



The Ciccal appendages of the proboscis-sheath are also unusually 

 well developed, with thicker walls than in most species, and they^ 

 sometimes anastomose distally^ 



Ocelli are present, but their arrangement was not stated. Genital 

 sacs are numerous, apparently in four rows, subventral. 



For other details reference should be made to the original descrip- 

 tion and figures. 



Oft' Nova Scotia, near Le Have Bank, 45 fathoms. 



I have observed a single, small, and probably immature, specimen 

 of DRiii'ANOPHORiD^: OH the New England coast, but do not deem 

 it Avise to name it. This was translucent yellowish white in color. 



Order II, ANOPLA. 



Ano2)Ui Max Scliultze, 1852; Mclutosh. 



Proboscis unarmed, long, slender, tubular, and not divided into 

 three distinct regions ; its walls may contain three to five layers ; 

 inner surface, when retracted, papillose. 



Head with or without lateral slits or ciliated pouches. 



Ocelli variously arranged ; often wanting. 



