534 A. JE. Verrill — Marine N'emerteans and Planar ians^ etc. 



Neoplana frequens Gr'd, p. 232=Procerodes ulvee Ter., vol. viii, p. 506. 

 Neoplana g-risea Gr'd, p. 232 = Fovia afB.iiis var. grisea Yer., vol. viii, p. 505. 



The genus Neoplana^ constituted for these two species, is super- 

 fluous, as well as heterogeneous. The two types belong respectively 

 to Procerodes and Fovia. These genera, as well as Bdelloura, are 

 Dendrocoela, as already stated. It is difficult to understand why 

 Dr. Girard referred them to the Rhabdoccela. In my former article 

 a sufficient account of their internal anatomy is given to show their 

 position with the Tricladidea or Monogonopora. 



Additional Species. 



Since the publication of my article in vol. viii, a few additional 

 species of marine Dendrocoela have been described from our coast. 



Planocera inquilena Wheeler, Journal of Morph.. vol. ix, p. 195, with fig. in 

 text, 1894. 



Vineyard Sound, Mass., parasitic in the gill-cavity of Fulgur 

 canaliculata. 



A translucent, pale grayish species, with slender, pointed tentacles. 



Bdelloura propinqua Wheeler, op. cit., pp. 169, 189, 1894. 



A small species (8"^™ lo^g)? parasitic on the gills of Limidiis, in 

 Vineyard Sound, Mass. This species is said to differ from B. Can- 

 dida in having more numerous testes, and in having a fibrous capsule 

 around the brain. 



Syncoelidiuni pellucidum Wheeler, op. cit, pp. 167-192, pi. viii, 1894. 



This new genus and species is closely allied to Bdelloura^ but has 

 the two main posterior intestinal rami united, and lacks a distinct 

 posterior sucker. It is 2 to 3™™ long, and is parasitic on the gills of 

 Lhnulus. It breeds in midsummer, in Vineyard Sound. 



Its anatomy has been well described and figured by Mr. Wheeler. 



