552 TEST ACE A ATLANTIC A. 



Subulina subplicata. 



Cochlicopa s,w\:)^\ica,id.^ Sow. ^ in Darwin's Vole. Id., Append. 



156 (1844) 

 Acbatina subplicata, Forbes, Journ. Geol. Soc. Lond. viii. 



197 (1852) 

 Bulimus subplicatus, Id., ibid. 199. pi. 5. f. 6 (1852) 



„ et Achatina subplicata, Melliss, St. Hel. 122, 123 



(1875) 



Habitat ad latera vise ' Sidepath ' dictse, inter Jamestown et 

 Longwood, semifossilis ; hodie recens baud obvia. 



Like tbe following one, the present species is subfossilized 

 and apparently extinct, occurring in tbe surface soil on tbe side 

 of the bill overlooking tbe Briars — in a cutting of tbe road 

 leading from Jamestown to Longwood. According to Mr. J. H. 

 Blofeld it would seem to exist equally in tbe direction of Flag- 

 staff; inasmucb as be particularly mentioned {Quart. Journ. 

 Geol. Soc. viii. 196) tbat be met witb it in company witb tbe 

 Bulimus auris-vulpina, — wbicb latter does not occur near tbe 

 Briars, but is essentially cbaracteristic of tbe district, or ridges, 

 between tbe conical bills which are known as Flagstaff and 

 Sugarloaf. 



Tbe >S^. 8ubpli<iaia, judging from its published figure, does 

 not appear to differ greatly from tbe 8. tcrebellum, — tbe two 

 forms belonging to precisely tbe same type. It is however a 

 little smaller than the latter (measming about 7 lines in length), 

 and there are faint indications of posteriorly-abbreviated longi- 

 tudinal plicse (adjoining tbe suture) on the anterior zone of 

 each whorl. Being subfossilized of course nothing can be said, 

 in tbe case of either species, as regards colour. 



Subulina terebellum. 



Cochlicopa terebellum. Sow., in Darivin''s Vole. Isl., A]j- 



pend. 156 (1844) 

 Achatina terebellum, Forbes, Jouim. Geol. Soc. Lond. viii. 



197, 198 (1852) 

 Bulimus terebellum, Id., ibid. 199. t. 5. f. 5 (1852) 

 „ „ Melliss, St. Hel. 122 (1875) 



Habitat in locis similibus ac prsecedens ; semifossilis. 



Judging from tbe figTire of this species wbicb accompanies 

 tbe late Prof. E. Forbes' paper in the ' Quarterly Journal of tbe 

 Geological Society,' tbe subfossilized ' Cochlicopa terebellum ' 

 of Sowerby is, unless I am much mistaken, like his C. subpli- 

 cata, a decided Subidina, — its elongate-conical outline and 

 shortened aperture, in conjunction witb the manifest keel across 



