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PROCEEDINGS OF THE MALACOLOGICAL SOCIETY. 



was probably identical with. C. Canariensis, D'Orb. Mr. Pilsbry^ 

 suggested that these two species required comparison, and that 

 C. dissimilis, Eeeve, might well be the same as D'Orbigny's species. 

 Eecently I have examined the types of all three species and tbe 

 specimens identified by Mr. Sowerby. C. dissimilis and C. lyratus 

 are, I think, one and the same species; C. Canariensis, however, is 

 distinct, and may be separated by its stronger sculpture and more 

 raised lateral areas. Mr. Sowerby' s South African specimens are, in 



Fig. I. Dinoplax fcssus, n.sp. 



Fig. II. Chiton Craivfordi, n.sp. 



my opinion, not C. lyratus, which is a "West Afr^ican species, but an 

 undescribed form, and may be distinguished by the elevated lateral 

 areas, coarser sculpture, and more elevated jugal ridge. From 

 C. Canariensis they may be separated by being more elevated, longer 

 in proportion to the breadth, and the girdle-scales being larger; also 

 by the coloration, in which reddish tints predominate. I therefore 

 propose to describe it under the name of : — 



^ Man. Ccnch., ser. i, vol. siv, p. 184. 



