XXIII.— DixoPHiLiD^ OF Np:av England. By A. E. Verriu.. 



No representatives of this group have hitherto been described 

 from this coast, so far as I am aware. Two species have been 

 known to me for several years, but I have delaj^ed publishing 

 descriptions of them, hoping to be able to obtain additional speci- 

 mens in order to make the figures and descriptions more complete. 

 But since this group is supposed by many writers to be related to 

 the Neraerteans, it seems to me desirable that our species should be 

 put on record in this connection. 



Both our species may be referred, provisionally, to Dinophilus, 

 though they differ considerably in structure. One of them {D. sim- 

 plex) may not be a true Dinophilus. 



Family, Dinophilid^ Graff. 



Dinophilus pygmseus, sp. nov. 



Wood-cut 10. 



Body very small, translucent, in extension long-ovate or nearly 

 cylindrical, capable of contracting into a short-ovate or subglobular 

 form, composed of five segments, exclusive of the head and tail ; 

 the posterior segments are usually the largest. Each segment is 

 surrounded near its middle by a circle of rather long and strong- 

 cilia. The head is usually rounded in front, often nearly semicircu- 

 lar, and has a tuft or fringe of strong cilia around its front margin, 

 and two transverse lateral tufts which are parts of two continuous 

 preoral bands, one before and one behind the eyes. The eyes are 

 rather wide apart, small, reniform, conspicuous. 



The mouth is small and appears to be bilobed. The pharynx or 

 oesophagus is short and swollen. On each side of the pharynx there 

 is a small pharyngeal gland. The stomach is large, oblong-cylin- 

 drical, and occupies about three body-segments in ordinary extension ; 

 the intestine is narrow and tei'minates in an anal opening at the 



Fig. 10. — Dino2Jhilus 2}yfjm(eiis, dorsal view, somewhat compre.ssed ; a, mouth 

 pharynx and pharyngeal glands ; .s, stomach ; i, intestine. 



