1870.] On the Land Shells of Bourbon. 411 



with the front of the neck slightly crimson, sides of the foot 

 mottled with dark brown, tentacles crimson. Not uncommon, widely- 

 spread, in damp woods. My specimens are all rather smaller than 

 Deshayes' type, being 9£ mill, in length and 5 J in diameter ; a 

 variety, probably Deshayes' intersecta, being in length 1 and in 

 diameter 4£. This shell agrees very fairly with a species figured as 

 P. versipolis, Fer. in Deshayes' Hist, des Moll, and in K ii s- 

 t e r ' s Conch. Cab. PL XI, f. 11 and 12, though I believe them to 

 represent Mauritian specimens of the allied 67. bacillus, Pfr., des- 

 pite the magnified sculpture in both agreeing far better with that 

 of the present species. M o r e 1 e t, Ser. Conch, p. 89, justly points 

 out that the figured specimens do not agree with the original 

 description ;Ferussac's remark that the animal of 67. versipolis 

 is of a rich orange red fortunately sets the question at rest, confirm- 

 ing Morelet; it can neither be 67. bacillus nor 67. Bourguignati, 

 the animals of both of which are pale yellowish. 



23. Gtibbus (Gibbulina) versipolis, Fer., ( =funiculus, Val.) 

 Of this species I only succeeded in finding one or two live speci- 

 mens in a damp wood under stones ; dead, bleached shells, on the 

 other hand, were more plentiful and wider spread than those of any 

 other Bourbon species of the genus, especially on the dry, sandy 

 plateaux behind Salazie, where I could find no traces of any other 

 land shells whatever ; the animal is of a rich dark orange colour 

 with purplish-black tentacles and with 2 broad streaks of the same 

 shade on each side of the foot. This is, I have no doubt, the shell 

 Ferussac called Pupa versipolis, Prodr. 468. The figure given 

 by M o r e 1 e t, Ser. Conch. PL V, fig. 14, (the lower variety princi- 

 pally) corresponds perfectly with some of the varieties I found of 

 the present species at Bourbon, though not exactly with any of the 

 Mauritian species that I have seen, the nearest being 67. holostoma, 

 M o r 1 1., var. and 67. Dupontiana, mihi, one of which has probably 

 given rise to the statement that 67. versipolis, F e r., is also from Mau- 

 ritius. Morelet states the specimen figured to be an authentic speci- 

 men ofFerussac's type, but does not clearly mention whether 

 it is from Bourbon or Mauritius ; in any case it differs materially 

 from both 6?. bacillus and 67. Bourguignati, one of which, as I before 



