Mr. T. D. A. Cockerell's Notes on Slugs. 335 



ii. Canary Islands. 

 Amalia g agates , var. carinata (d'Orb.). 



The figure given by d'Orbigny of this Teneriffe slug 

 suggests at first sight some Parmacella ; but a careful exam- 

 ination of his account of the species leaves little doubt that it 

 is a form of A. gagates. There is no occasion to keep the 

 spelling of the text " carenata" as it is evidently a misprint, 

 and is given correctly (carinata) on the plate. Bourguignat's 

 Limax polyptyelus was founded on d'Orbigny's figure, the 

 new name being proposed because carinata was preoccupied 

 for a European species. 



iii. The Azores. 

 A malia gagates has been recorded from these islands. 



iv. Bermuda. 



In the British Museum are three examples of A malia gagates 

 from Bermuda (' Challenger ' collection). These were 

 recorded by Mr. E. A. Smith (P. Z. S. 1884, p. 276). They 

 belong to form typus, Less. & Poll., but are rather more 

 opaque and rugose than is usual, and the keel is flexuose. 



v. Ascension. 

 A malia gagates, .var. ascensionis (Lesson). 



The published figure of this is a bad one, but it is no doubt 

 a variety of gagates. The subgeneric term Clytrojpelta, 

 Heyn., proposed for it is therefore quite unnecessary. 



It is very interesting to find that this variety, collected so 

 many years ago, resembles in colour the forms found at 

 St. Helena, Tristan d'Acunha, and Juan Fernandez. 

 Whether the Ascension slug is not really a subspecies indi- 

 genous to that island is perhaps open to question ; but it 

 seems more likely that here, as on the other islands, we have 

 simply the descendants of imported A. gagates, which have 

 already begun to diverge from the type. It would be an 

 interesting experiment to bring some of these slugs to Europe 

 and breed them in captivity, and see whether they kept true 

 or reverted to the coloration of the European type. 



