ACHATINA.— Plate XIV. 



and regarding the columella to be truly plaited, placed 

 the species among the Mitres in their gemis Volulu. 



Species 53. (Mus. Cuuiiug.) 



AcuATlNA Lattrei. Achat, lesid cyUndraceo-oblongd, 

 Folvariaformi, spird Irevi, anfradibus septem, convexo- 

 plauis, ItBvi&us, cuticulam carneam politam indutis, 

 colmnelld contortd, lird callosd marginatd, aperturd 

 elongatd, angudd; fulvd, nifo-brunneo longitudinu- 

 lite)- mibremote strigatd. 



Lattre's Achatina. Shell cylindrically oblong, Vol- 

 varia-shaped, spire short, whorls seven in number, 

 convexly flattened, smooth, covered with a polished 

 homy cuticle, columella twisted, edged mth a caUous 

 ridge, aperture elongated and narrow ; fulvous, lon- 

 gitudinally rather remotely streaked with red -brown. 



Pfeiffer, Pro. Zool. Soc. 1845. p. 138. 



Hab. Central America ; Lattre. 



The shell of this species approaches the form of Volvaria 



oy ToruateUa, though totally unconnected with those 



genera ; the columella is not, however, plaited, but elevated 



at the base into a callous ridge, as in the Achatina columna. 



The entire surface of the shell is covered with a perfectly 



transparent polished horny cuticle, through which the dark 



stripes show with additional lustre. 



It is a rare and extremely interesting species, collected 



by M. Lattre in Central America, probably in the province 



of Vera Cniz, and named by Dr. Pfeiffer in honour of that 



r'lniiu'iit traveller. 



Species 54-. (Mus. Dennison.) 



Acii.^.TiNA NIGRICANS. Achat, testd obloiigo-ovatd, soU- 

 d'msculd, anfractibm septem, convexis, mperrm subtiliter 

 concentrice striatis, deinde lisvibus, cuticulam comeam 

 polifa-iii iiidi/lia, colmnelld brevi, contortd, attenuate 

 Iniiii::/,!, iijui-liird oblongd, labro medio subdilatato ; 

 lir\ihi-)iiijrd^ xiituris basique fiilvis, strigis fulvis per- 

 puiirls longitudinalibm notatd. 



Tub isLACKisH Achatina. Shell oblong-ovatc, rather 

 solid, whorls seven in number, convex, finely concen- 

 trically striated round the upper part, then smooth, 

 covered with a polished horny cuticle, columella short, 

 twi-trd, nitriiiiately truncated, aperture oblong, bp 

 >li^;lill\ ilihili'd in the middle; livid-black, sutures 

 aii'l ha^c liilviiu*, marked with a very few fulvous 

 streaks. 



Pfeiffer, {Glamlina,) Pro. Zool. Soc., 1845. p. 75. 



Ilab. Vera Cruz, Central America; Lattre. 



.\ii interesting species, covered with a transparent 



cuticle of the same highly glazed character as the pre- 

 cetling, from the same locality, more swollen in fonn, and 

 of a peculiar dark beetle bro\ra or black. 



Species 55. (Mus. Cuming.) 



Achatina voluta. Achat testd siibcylindraceo-oilongd, 

 oleuced, solidiusculd, spird brevi, anfractibm septem, 

 subplano-convexis, lesvibtis, cuticulam comeam politam 

 indutis, columella brevi, arcuatd, abrupte truncatd, 

 aperturd elongatd, arujustd, labro 'medio subdilatato ,- 

 olivaceo-brunnescente, subindistincte longiludinaliter 

 strigatd. 

 The volute Achatina. Shell somewhat cylindrically 

 oblong, olive-shaped, rather soUd, spire short, whorls 

 seven in number, somewhat flatly convex, smooth, 

 covered with a pobshed horny cuticle, columella short, 

 arched, abmptly truncated, apertm-e elongated, nar- 

 row. Lip slightly dilated in the middle ; light oHve- 

 browu, somewhat indistinctly longitudinally streaked. 

 Deshayes, Anim. sans vert. vol. viii. p. 300, note. 

 Bulla voluta, Chemnitz, Conch. Cab. vol. ix. pt. 2. p. 16. 

 pL117.f. 1009, 1010. 

 Bulimus glans, Bruguiere. 

 Helia; (Cochlicopa) glans, Ferussac. 

 Achatina glatu, Lamarck. 

 Polyplienius glans, De Montford. 

 Glandina glans. Beck. 

 Glandina olivacea, Schumacher. 

 Hab. West Indies. 



The above species may be regarded as the type of this 

 shining horn-clad group. Though of rare occuiTence, it is 

 admirably figured in vol. ix. of the Conchy ben Cabinet, pub- 

 lished in 1786. 



Species 56. (Mus. Cuming.) 



Achatina Dojiinicensis. Achat, testd fusiformi-oblongd, 

 anfractibus septem, convexis, superne subrotundatis, lon- 

 giludinaliter suitilissime et creberriirie ineiso-striatis, 

 columelld suicontortd, labro medio dilatato ; fulvo- 

 aurantid, strigis latiusculis intense caslaneis, remofis, e 

 suturis descetidentibus, notatis. 



The St. Domingo Achatina. Shell fusiformly oblong, 

 whorls seven in number, convex, somewhat rounded 

 at the upper part, longitudinally very finely and 

 closely deeply striated, columella rather twisted, lip 

 dilated in the middle ; fulvous-orange, marked with 

 distant rather broad dai-k chestnut streaks descending 

 from the sutures. 



Deshayes, Anim. sans vert. vol. viii, p. 302, note. 

 Bulla Bominicensis, Gnielin. 



