640 sm c. ELIOT ON NUDiBRANCiis [June 19, 



is mucli to be desired that some naturalist in the tropics may 

 follow the example of Kelaart with his vivarium, and by observing 

 the living animals throw more light on their development, 

 variation, and habits. 



My best thanks are due to the Council of the Hancock Museum 

 at Newcastle-on-Tyne for the loan of drawings and collections, 

 and to Mr. T. J. Evans, Lecturer in tlie University of Sheffield, 

 for assistance, especially in the preparation and examination of 

 sections. 



Hexabranchus marginatus Q. & G. 

 = D. gloriosa Kelaart. 

 (Kelaart, 1. c. I. p. 291.) 

 Whatever limits be assigned to species and varieties within 

 this genus, Kelaart's plate leaves little doubt that his D. gloriosa 

 is the form called D. marginata by Quoy & Gaimard. 



Chromoboris a. & H. 



(Eliot, Journal of Malacology, 1905, Oct., p. 36 ; 

 and Proc. Zool. Soc. 1904, i. pp. 382-6.) 



Bergh in his 'System' (p. 1104) gives a list of 105 species. 

 Of these, Ghr. elizabethina is probably the Doris quadricolor of 

 Rlippell and Leuckart, and, as shown below, Chr. semperi is 

 probably the Doris diardii of Kelaart. Chr. nigrostriata Eliot 

 and Ghr. tenuilinearis Farran are both varieties of Chr. semperi 

 {v. Eliot, I. c), and therefore should be classed under Chr. diardii. 

 Ghr. petechialis (Gould) is probably the same as Chr. tumidifera 

 Collingwood. Chr. maccarthyi is certainly a Casella and should 

 be omitted from the list, to which the following species may be 

 added : — 



105. Chr. agassizii Bergh. 



106. Chr. portercB Cockerell. 



107. Chr. viacfarlandi Cockerell. 



108. Chr. epicurea Basedow & Iledley. 



109. Chr. sykesi EUot. 



110. Chr. anmdata Eliot. 



111. Chr. splendens Eliot. 



112. Chr. vichia'EMot. 



113. Chr. inconsjncua Eliot. 



114. Chr.? flavam.\ot. 



115. Chr. tasmaniensis Bergh. 



116. Chr.figurata Bergh. 



117. Chr. ccgialia Bergh. 



118. Chr. a,topa Jievgh. 



119. Chr. tennentana (Kelaart). 



120. Chr. gleniei (Kelaart). 



121. CAr. ? «ma&'ifo"s (Kelaart). 

 123, Chr.flammidata Bei'gh. 



'^. — Chr.fidelis(\'Le\vin,vt). 



