SPURILLA BRAZILIANA MAC FARLAND 95 



twenty-sixt, In S , 



as exhibited 



capsule, from which in the specimen at hand the gang ia had 

 m part shrunken away, the general preservation predudtg "nv 

 sahsfactory detailed study of the cells and fibre tracts in- sertionT 

 though the general relations could be readily made out For 

 companson several specimens of Sp. neafoliLa were a so *s 

 sected. In general there is no great difference between the two 

 spec.es but some marked discrepancies were noted between tie 

 Neapohtan species and the figures given for it by BergT "77) 

 and by Tnnchese ('78), e s pecially in y "J 



the nerves In Bergh's fig. 4, PI. XII, the nerves appeaf to be 

 ' di 



u._ j . -y i_>v,ing nciiuer num- 



r mentioned in the text, the author manifestly laying- 



most stress upon the form and grouping of the ganglia In he 



dd CerT d ^T " NUOV RiCerChC SUl1 ' O^n-azion 

 Cervello degh Eolididei," Memorie dell'Accademia delle 

 Scienze dell Institute di Bologna, 1875, Serie III, T. V, he devotes 

 his attention to certain peculiarities of the nerve cells as seen in 

 preparations, cleared in glycerine and flattened under a cover 

 glass, his figure of Tavola I giving but a faint idea of the actual 

 form of the ganglia and the origins of their nerves. In his 

 Anatomia e Fisiologia della Spurilla neapolitana," cited above 

 this is corrected in the figures of Tavola XI, which present the 

 5t representations of the central nervous system of this Eolid 

 yet published. In the figure of the same for Sp. braziliana, given 

 on PI XIX, fig. 96, I have adopted the designations used by 

 Tnnchese for the nerves for the sake of ease of comparison 

 ough I must disagree with him as to the actual origin and 



