442 TESTACEA ATLANTIC A. 



The three examples from which I have compiled the above 

 diagnosis were all of them taken by Mr. Lowe, — two (which I 

 have regarded as typical of the species), on the 20th of April 

 1858, towards Savinosa, in the forest district of El Golfo, on the 

 western side of Hierro ; and the other (the ' var. /3. inflatius- 

 culus ' of the present enumeration,' and which may perhaps 

 represent in reality a closely-allied species), on the 21st of 

 April 1861, on a rock immediately beloiu the Cumbre in 

 Gomera, on the mountains above San Sebastian. My own 

 belief is, that only a single species is indicated by these three 

 individuals which are now before me, — the few small points of 

 difference which are displayed by the one from Gomera being 

 suggestive, as I cannot but think, of a mere race, or modifica- 

 tion, peculiar to that island ; though, at the same time, it is 

 evident that further material can alone decide this question. 



The large size, and broad, ovate, inflated outline of the B. 

 savinosa^ added to the prominent, subpapilliform apex of its 

 spire (the volutions of which are a good deal flattened), its wide 

 aperture, and acute, broadly-expanded peristome (the margins 

 of which are far apart, and well-nigh unconnected by an inter- 

 vening lamina), will sufficiently characterize it. Its surface is 

 rather glossy and simply striated (except on the subapical 

 whorls, where the strise are more or less broken-up and obsoletely 

 granulose) ; its columella is broad, short, and rather sinuated ; 

 and its colour is a pale olivaceo-corneous. 



The single Gomeran example which is now before me (em- 

 bodying the ' var. /3. infiatiusculus ' of the above diagnosis), 

 and which is somewhat worn and decorticated, has only 7 whorls 

 instead of 8, and the volutions of its spire are not so completely 

 flattened as in the Hierro ones. Its aperture, too, is, if any- 

 thing, a trifle longer ; its peristome (the margins of which are 

 not quite so far apart, and are more evidently joined by a thin 

 intervening lamina) is less broadly expanded and less acute ; 

 and its columella, as seen internally, is not quite so widely de- 

 veloped. 



Bulimus Consecoanus. 



T. (magna) minute rimata, fere subclausa, elongate ovato- 

 conica, solida, opaca, inoequaliter plicato-striata (striis hinc inde, 

 sed prsesertim in anfr. intermediis, punctato- et subgranuloso- 

 confuse fractis), vel plumbeo- vel flavescenti-cornea strigisque 

 (vel albidis vel flavo-albidis) valde irregularibus et plus minus 

 confluentibus obscure ornata ; spira elongata, conica, apice acuto, 

 prominulo-subpapilliformi ; anfractibus 9, planiusculis, sutura 



