A CHATINA. 
Plate IT. 
Species 13. (Mus, CumiBg.) 
Achatina prunum. Achat, testa ovata, tenui, ventrico- 
siusculd, spird apicem versus obtusa, anfractihus quin- 
que, infra suturas appressis, Imviusculis, apicem versus 
minntissinie decussatis, columella arcuatd, vix truncatd; 
aureo-lutescente, castaneo latistrigatd. , superne purpureo- 
rosea. 
The plum Achatina. Shell ovate, thin, rather ventri- 
eose, obtuse towards the apes, whorls five in number, 
appressed beneath the sutures, somewhat smooth, 
very minutely decussated towards the apex, columella 
arched, but slightly truncated ; pale golden-yellow, 
broadly streaked with chesnut, purple-rose towards 
the upper part. 
Hah. AVest Africa. 
A striking species, distinguished by its obtuse growth 
and peculiar colouring. The last whorl is of a delicate 
golden-yellow, marked with dark chesnut streaks converg- 
ing together at the base, whilst the upper whorls are of a 
purple-rose, indistinctly spotted at the sutures. 
This species may possibly have been taken for the young 
of A. marginata, but it is certainly distinct. 
Species 14. (Mus. Dennison.) 
Achatina marginata. Achat, testa conico-ovatd, ven- 
f tricosd, anfractihus sex ad septem, lecvibus, apicem 
versus minutissime decussatis, infra suturas peculiariter 
marginatis, columella subprofunde arcuatd et contorta, 
lutescente, nigricante-castaneo profuse undulald et stri- 
gatd, apice intense roseo, columella nunc alba, nunc 
rosed, apertures fauce ceerulescenle-albd. 
The margined Achatina. Shell conically ovate, ven- 
tricose, whorls sis to seven in number, smooth, very 
minutely decussated towards the apex, peculiarly mar- 
gined beneath the sutures, columella rather deeply 
arched and twisted ; yellowish, profusely waved and 
streaked with blackish chesnut, apex deep rose, colu- 
mella sometimes white, sometimes rose, interior of 
the aperture bluish-white. 
Swain son, Zool. Ulus. pi. 30. 
Achatina amphora, Jay. 
Hah. West Africa. 
Mostly very richly marked externally, but not coloured 
in the aperture as in the species which follows. 
Species 15. (Tig. a, Mus. Cuming ; Fig. b, Mus. Dennison.) 
Achatina purpurea. Achat, testa ovata, solidiusculd, 
anfractihus sex, convexis, infra suturas marginatis et exi- 
mie cremlatis, longitudinaliter striatis, apicem versus 
decussatis, columella subprofunde arcuatd et contorta ; 
ccerulescente-olivaced, pallide fusco rarb strigatd, apice 
rosaceo, colmnelld et apertures fauce intense roseis, 
interdum nigro-purpureo marginatis. 
The purple Achatina. Shell ovate, rather solid, 
whorls six in number, convex, margined and delicately 
cremdated beneath the sutures, longitudinally stria- 
ted, decussated towards the apex, columella somewhat 
deeply arched and twisted ; bluish-olive, faintly 
streaked at distant intervals with pale brown, pink 
at the apex, columella and interior of the aperture 
deep rose, sometimes edged with black-purple. 
Lamarck, Anim. sans vert. (Deshayes’ edit.) vol.viii. p. 296. 
Bulla purpurea, Chemnitz. 
Bulivms purpurascens, Bruguiere. 
Hob. Cape Palmas, West Africa. 
This species may generally be recognised by the deep 
rose colouring of the aperture and columella, which, as in 
the beautiful specimen figured from Mr. Dennison’s col- 
lection, is sometimes edged with very dark purple, ap- 
proaching to black. 
February, 1849. 
i. 
