1896.] 



NATURAL SCIENCES OF PHILADELPHIA. 



405 



TABLE OF DISTRIBUTION OF GALAPAGOS LAND SHELLS. 



A, Albatross ; B, Baur ; C, Cuming ; D, Darwin ; H, Habel ; K, Kellett ; P, Peterel ; 

 W, Wolf ; collectors or authorities. 



Names of the forms. 



Bulimiilus mix 



Bulimulus achatellinus.. 



* 



Bulimulus 

 Bulimulus 

 Bulimulus 



Bulimulus 

 Bulimulus 

 Bulimulus 

 Bulimulus 

 Bulimulus 

 Bulimulus 



Darwini 



Wolti 



duucanus ... 



* * 



rugulosus.... 

 var. uudus . 

 planospira.. 

 ustulatus.... 



calvus 



nucula 



Bulimulus eschariferus. ... 

 Bulimulus var. veutrosus. 

 Bulimulus var. pileatus.... 

 Bulimulus galapaganus.... 

 Bulimulus perspectivus 



Groups of the Islands. 



Southeastern. 



Chatham. 



Bulimulus jacobi 



Bulimulus var. ciuereus. 

 Bulimulus var. acutus.... 



Bulimulus olla 



Bulimulus Tanueri 



* 



Bulimulus 

 Bulimulus 



Bulimulus 



Bulimulus 



Bulimulus 

 Bulimulus 



* 



Bulimulus 

 Bulimulus 

 Bulimulus 

 Bulimulus 



* 



Bulimulus 

 Bulimulus 

 Bulimulus 



amastroides 



var. curtus 



* 



unifasciatus 



* 



Simrothi 



* * 



Bauri 



caualiferus 



* * 



seulpturatus.... 



nesioticus 



rugiferus 



Keibischi 



* * * 



chemnitzioides. 



Habeli 



n. sp 



Trochomorpha ? Bauri 



Vitreachatliamensis 



Conulus galapaganus 



Pupa Woltii 



Pupa clausa 



Succinea Bettii 



Succinea brevier 



Succinea producta 



Succinea corbis 



Leptinaria chathamensis. 



Leptinaria sp 



Helicina nesiotica 



Auricula stagualis 



Melampus trilineatus 



Tralia pauameusis 



Pedipes angulatus 



Siphonaria gigas 



Williamia peltoides 



Onchidium Lesliei 



Onchidella Steindachneri. 



Number of forms, 54. 



Charles. 



Hood. 



KABW 

 KWB 



DKC 



K 

 B 



DKWAB 



W 



B W 



W 



A 

 W AB 



KB 



B 

 W 



KH W AB 

 H W AB 



D7 

 B 

 B 



W 

 WB 

 WB 

 WB 



H 



CPW A 



D A W B 



W 



B 



C 



CW A 



w 

 p 



B 



C P 



H 



P A 

 P B 



A 



H 



A 



AH 



25 



17 



Bar. 



WB 



Central. 



Indf. 



W 



B 



H 

 H 



B 

 A 



W 



W 



Dun. 



B 



BA 



Alb. 



B W 



WB 



B 



WB 

 B 



B 

 B 



W 

 W 



Jas. 



C 



WAB 

 C 



A 



C 



w 



A 

 A 



11 



B 



N.E. 



Bindl. 



H 



H 

 H 



