BULBIUS.— Plate XXIV. 



ill a smaller state deprived of epidermis. The speeimeii 

 lierc represented, is from the choice colleetioii of Mr. 

 Dciinison, and Mr. Cuming possesses it almost equally 

 fine, selected from the stores of Mr. Dyson obtained during 

 a recent expedition to Venezuela. 



The journey performed by Mr. Dyson in this fertile 

 district of South America, in search of objects of natural 

 histor)-, was undertaken tlirough the generosity of a limited 

 number of zoological friends, who, with the hope of eii- 

 ricliing their collections, were at the same time desirous of 

 cucour^ing the zeal of a young naturalist distinguished 

 by his love of adventure. Though not perhaps a very 

 profitable excursion, he collected many interesting species, 

 and has no doubt gratefully responded to the patronage 

 of his friends. 



Species 158. (Mus. Cuming.) 



Bllimis Thompsoni. Bui. testa subeloiigato-oblongd, 

 imperforatd, apice obtusa, anfractibus sex, longiludina- 

 liter striatis, per suturas plmw-crenulath, columella 

 recta vel paululum arcuatd, labro vie reflexo ; livido- 

 riaered, epidermide carried, nitidd, olivaceo-mridi 

 iudutd, apice rufescenle, anfractuuvi margine superiorl 

 crenulato aliicante, apertura fauce cetrulescente, juxta 

 peritremapurpxireo-nigricante, labrk lamina nigricante- 

 lividd callosd junctis. 



Thompson's Bulimus. Shell somewhat elongately ob- 

 long, imperforated, obtuse at the apex, whorls six in 

 number, longitudinally striated, flatly crennlated along 

 the sutures, columella straight or a little curved, lip 

 but slightly reflected ; livid ash colour, covered with 

 a shining horny olive-green epidennis, reddish towards 

 the apex, upper crenulated edge of the whorls whitish, 

 interior of the aperture bliush, purple-black towards 

 tlie peritrcme, lips joined by a callous blackish livid 

 lamina. 



I'fkiffer, Pro. Zool. Soe., 18^5, p. 7 t. 



Ihh. Andes of Quito. 



A very distinct species remarkable for the same shining 



horny green epidermis which characterizes the Helix Busbii. 



(Conch. Syst. vol. ii. pi. 164. fig. 11.) 



Species 159. (Mus. Cuming.) 



HlLlMUS SuoNol. Bui. testd pgramidali-obloiigd, crassd, 



imperforatd, anfractibus sex, lavibus, per suturas sub- 



crenulati.1, labro reflexo ; fuscescente, epidermide corned 



rufo-ca-itaned iudutd, anfractuum margine superiori 



albicante, columelldet apertura fauce intense aurantio- 

 rufis, peritremate albicante. 

 Shong's Bulimus. Shell pyramidally oblong, thick, 

 imperforated, whorls six in number, smooth, slightly 

 crenulated along the sutures, lip reflected ; light 

 brown, covered with a horny reddish chesnut 

 epidermis, upper edge of the whorls whitish, colu- 

 mella and interior of the aperture deep orange red, 

 pcritreme whitish. 

 Lesson, Voy. de la Coquille, Moll. p. 321. pi. 7. f. 4, 5. 

 Hob. New Zealand. 



A shell of not uiieommon occui-rence, always distin- 

 giushed by the deep orange red colouring of the aperture 

 and rich chesnut epidermis, whilst there is no plait on the 

 columella. 



It was first discovered by M. Lesson, during the Voyage 

 of the Coquille, at the Bay of Islands, New Zealand, and 

 named after one of the native Chiefs of that district. 

 Subsequently M. Lesson thought to have recognised his 

 species in Chemnitz's figm'e, Conehyl. Cab. vol. ix. pi. 121. 

 f. 1039-40, under the title Helix auris-Midte and in De 

 Ferussac's figure of the B. auris-boviuus, Hist. MoU. terr. 

 et fluv. pi. 159. f. 1, 2, but it is perfectly distinct from 

 these, which (vide PI. XXX.) are also distinct from each 

 other, and the honoured name of the New Zealand Chief 

 remains to posterity. 



Species 160. (Mus. Cuming.) 



BuLiMUS FULMINANS. Bul. testd obkmgd, apicem versus 

 pecuUariter acuminatd, anfractibus quinque, oblique 

 convolutis, undii/nt' lotigitudinaliter et reticulata cor- 

 rugatis, coliimeUufortitcr uniplicatd lajbro late reflexo ; 

 fmmo-fuscd, suhpeUucidd, strigis longitudinalibus acute 

 angulatis intense castaneis conspicue ornatd. 



The lightning Bulimus. Shell oblong, peculiarly 

 acuminated towards the apex, whorls five in number, 

 obliquely convoluted, longitudinally and reticulately 

 wrinkled throughout, columella strongly one-plaited, 

 lip widely reflected ; smoky brown, somewhat trans- 

 ])arent, conspicuously ornamented with sharply 

 angled, dark chesnut longitudinal streaks. 



NvsT, Bull, de I'Aead. Royale de BruxeUes. 

 Bulimus bellulus, Jonas. 

 Bulimus Loeveni, PfeifFer. 



Bab. Colonia de Tovar, Venezuela ; Dyson. 



A somewhat rare species rather sharply acuminated 



towards the apex, of a peculiar semitransparent smoky 



brown colour, marked with sharply zigzag longitudinal 



chesnut streaks. 



