A. E. Verrill — Marine Planarians of Neto England. 491 



The pharynx is short and broad and has five large lobes on each 

 side, some of which are bilobed, and two small lobes near the antei-ior 

 end. The mouth is somewhat behind the middle of the pharynx. The 

 stomach has five or six main branches on each side and these are 

 much branched and extensively anastomosed distally, as described 

 above. 



The meshes or interspaces between the stomach-branches are filled 

 with large numbers of rather large ovarian folicles and a much 

 greater number of smaller s])ermaries which are grouped closely 

 around each of the ovarian folicles, so as to form rosettes Avhere they 

 are not too much crowded ; distallj^ the spermaries increase in num- 

 bers, while the ovaries diminish. 



The combined granular gland and penis-bulb (figs. 4, 4«, k) form 

 a regularly pyriform organ, rounded anteriorly, and having essen- 

 tially the same structures as in the specimens described above ; the 

 penis and penis-sheath {q) also agree well with those already 

 described. Owing to the mutilation of the female organs and the 

 contraction of the parts, the anterior female orifice and the male 

 orifice are brought close together, and the posterior female orifice is 

 not distinguishable. 



This is a very active and restless species. One specimen protruded 

 its multilobed pharynx when placed in alcohol. A specimen (sta. 

 136, July 26, 1878) was filled with white eggs, visible through the 

 integument of the ventral side, while living. 



When preserved in alcohol, the specimens retain their form better 

 than those of most of the I'elated species, and usually do not curl up 

 much ; the preserved specimens are rather thick, firm, usually broad- 

 ovate, narrower toward the front end, which is often somewhat 

 lanceolate ; the mouth is usually visible as a small round central 

 opening ; the small male reproductive orifice, or a papilla in its place, 

 is often distinct. 



Trigonoporus dendriticus, sp. nov. 



Plate xli, figure 4; Plate xlii, nauRES 4, 4a, 4& ; Plate xliii, figure 5. 



Body usually ovate with the anterior end narrowed and more or 

 less pointed, edges undulated and flexible, but the form is subject to 

 considerable changes, though less so than in the species of Lepto- 

 plana. 



Ocelli minute and rather inconspicuous ; the cerebral groups are 

 near together, irregular and somewhat elongated, composed of 

 numerous very small ocelli which mostly lie over the anterior and 



Trans. Conn. Acad., Vol. VIII. 64 January, 1893. 



