34 ACHATINA, EAST AFRICA. 



Pfeiffer describes the type as rather solid, finely granulose- 

 striate, with impressed-marginate suture. Length 75, diani. 

 29, aperture 35 x 17 mm. I have not seen the species. 



Pfeiffer has described and figured a var. >, whitish, with 

 spots and streaks of pale fulvous or subobsolete, from Zan- 

 zibar, collected by Rodatz. See Conchyl. Cabinet, Bulimus, 

 pi. 44, f. 7, 8, and Achatina, p. 367. It cannot well be be- 

 lieved to belong to the West African A. allisa. 



SPECIES OF EAST AFRICA AND THE LAKE REGION. 



LITERATURE OF EAST AFRICAN ACHATINID^. The species 

 of the coast and adjacent islands were for the most part 

 known to the early writers, Bruguiere, Lamarck, Ferussnc, 

 and others, though much work still remains to be done upon 

 their local races and relationships. The principal workers 

 upon the interior forms have been. E. A. Smith, whose fruit- 

 ful work upon this fauna has continued from 1880 to the 

 present time (Proceedings of the Zoological Society of Lon- 

 don, and in the British conchological periodicals). E. von 

 Martens, whose Beschalte Weichthiere Ost-Afrikas has taken 

 its place as a classical work on this fauna, and M. J. R. 

 Bourguignat, who has treated especially of Achatina in two 

 works : Description de diverses especes terrestres et fluviatiles 

 et de differents genres de Mollusques de TEgypte, de 1'Abys- 

 sinie, de Zanzibar, du Senegal et du centre de 1'Afrique 

 (1879), and Mollusques de 1'Afrique Equatoriale (1889). 

 Mr. C. F. Ancey also has published a number of critical and 

 descriptive notes upon the species of this area, his material, 

 like that of Bourguignat, having been collected largely by 

 the Christian missionaries whose heroic labors are the glory 

 of France. 



;, Group of A. panthera. 



33. A. RETICULATA Pfeiffer. PL 35, fig. 15. 



Shell acutely oblong-ovate, solid and heavy, brownish 

 cream-white, broadly streaked with reddish-brown on the 

 spire, less so on the last whorl, sprinkled with dots and spots 

 of the same color. Surface nearly lusterless, strongly pli- 



