Mr. L. Reeve on the Geographical Distribution of the Bulimi. 247 



tremely thin shells devoid of colour or pattei'n^ consist of B. bac- 

 terionides, lichnorum, turritella, &c. Two or three species have been 

 collected ou the mountains surrounding the Lake of Titicaca, which 

 is itself 14,000 feet above the level of the sea. Of these B. Pent- 

 landi and Hamiltoni may be quoted as examples. In the high 

 lands of the Cordillera range, commencing at the Lake of Titicaca, 

 passing along the region of medicinal barks, as laid down by Wed- 

 dell, to Cuzco, Chachapoyas, and the Andes of Caxamarca, and 

 extending across the equator by Quito, Bogota, and Merida, 

 nearly to Caraccas, many fine species have been collected, but of 

 too miscellaneous a variety of form to show any typical assem- 

 blages. From this extensive and little-explored region we have 

 B. labeo, Adamsoni, Thompsoni, rhodolarynx, Hartwegii, Alto- 

 Peruvianus, alutaceus, Taylorianus, murrinus, Lobbii, Clausili- 

 oides, and columellaris, singularly different from each other, and 

 differing altogether from the Bulimi of Bolivia and La Plata. 

 There is, however, one well-defined group inhabiting the south- 

 ern extremity of the Cordillera range at Merida and Bogota, of 

 which B. Cathcartiae, Veranyi, Succinoides and quadncolor are 

 characteristic examples. They have peculiarly inflated richly 

 coloured shells, and ai'e covered with a delicate hydrophanous 

 epidermis disposed in hieroglyphic patterns after the manner of 

 the Philippine Bulimi. 



5. Central America. 



Of the remaining Bulimi of the American continent, about ten 

 species inhabit the central neck of land which comprises the pro- 

 vinces Veragua, Panama, Costa Rica, Nicaragua, Honduras and 

 Guatemala. Fourteen species have been collected in the hilly 

 parts of Mexico ; and two or three species scattered in Cahfornia, 

 Texas, and Alabama constitute the northern limit of the genus 

 in the new world. The Bulimi of Central America are very 

 distinct from those of which we have been speaking hitherto. 

 B. Panamensis, vexillum, translucens and unicolor from Panama, 

 B. corneus from Real Llejo, B. discrepans from Conchagua, and 

 B. Hondurasanus and Dysoni from Hondui'as, are all characterized 

 by a thin transparent horny shell of the same type. They have 

 little pattern or variety of colour, and live upon the trunks of 

 trees or under fallen leaves. None of the South American types 

 have any representatives in Central America. There is, however, 

 a single species in Honduras, B. Kieneri, belonging to a singular 

 Cyclostoma-\ike type, which belongs evidently to Jamaica, where 

 it is represented by B. Gossei, turricula, unicarinatus, cylindricus, 

 and Gidldinffii. In ]\Iexico the Bulimi are more varied Five 

 species, B. Mexicanus, serperastrus, livescois, Humboldtii and nite- 

 linus, in which the shelly is of a Ught brittle structure, oblong 



