150 Miscellaneous. 



fact that none are mentioned in Mr. Jukes-Browne's list of the fossils 

 (Quart. Journ. Geol, Soc. xxxi. p. 305), the author proceeded to 

 explain the circumstances under which he had been entrusted with 

 the whole of Mr. T. Jesson's collection from the coprolite-bed for 

 description. The collection is large and important, and the Polyzoa 

 contained exhibit a facies distinct from that of the Jurassic beds on 

 the one hand and of the Upper Chalk on the other. There is but 

 little similarity between the collection now described and the forms 

 known from Warminster and Farringdon. The majority of the 

 Cambridge-Greensand Polyzoa occurred unattached to any matrix ; 

 but several examples of attachment have been observed, chiefly to 

 Ostrea, Radiolites, and species of Gidaris. 



A list showing the range of the species described preceded the 

 actual descriptions of the following kinds of Polyzoa and Forami- 

 nifera, with notes on their relations &c. It included : — 



Polyzoa. 



Sfomatopora gracilis, Milne-Edw. Lichenopora, sp. 



Idmonea dorsata, Hagencw. ? paucipora, Vine. 



Entalopliora raripora, U Orb. Dromopora stellata, Gold/uss. 



Jessonii, sp. nor. polytaxis, Hagenow. 



striatopora, sp. nov. Osculipora plebeia, Novall. 



gigantopora, sp, nov. Truncatula, sp. 



Diastopora cretacea. Vine. Membranipora cantabrigiensis, sp. 



•, var. lineata, var. nov. nov. 



fecunda, sp. nov. Microporella, sp. (? antiquata). 



megalopoi-a, sp. nov. Lunularia cretacea, I)efr. 8f VOrb. 



FOEAMINIFEEA. 



Webbina laevis, Sollas. Trochammina irregularis?, If Orb. 

 tuberciilata, Sollas. Textularia, sp. 



MISCELLANEOUS. 



Oti the Existence of a Nervous System in the Accelous Planarice and 

 of a new Sense-organ in Convoluta Schultzii. By M. Yves 

 Delage. 



There are in the animal kingdom a small number of creatures with 

 differentiated tissues in which no nervous system has been recog- 

 nized. Nevertheless the well-known existence in them of sense- 

 organs almost enables us to assert a priori that of ganglionic cells 

 and of nerves. Among these creatures are the lowest Planarise inclu- 

 ded in the group of the Accelous Rhabdocoela. In the most recent 

 and the most authoritative work upon this subject, that of L. Graff, 

 these Planarise are described as having no nervous system. Never- 

 theless a Russian zoologist, Mile. Pereyaslawzew, speaking inciden- 



