29 



erwähnten 18 Exemplaren sind 4 Ch. amhigtm, 6 Ch. Dün- 

 ken', 7 Ch. semipiirpurata, 1 Ch. retroversa. 



Pecten c[uadriliratus Lke. 



Testa parva, ovato-trigona, solidiuscula, paene aequilatera, 

 piano -fiönvexa, plicata radiatimque lirata, inter liras minu- 

 tissime sqiiamosa; plicae undecim, in utraque valva ab 

 initio simplices^ tum sulco bipartitae, postremo quadrili- 

 ratae; valva sinistra subnodosa, griseo-purpurea , zonis al- 

 bidis signata, in interstitiis trilirata; valva dextra albida, 

 colore pallide purpiireo maculata , in interstitiis nni- vel 

 bilirata; auriculae valde impares, costulis inaequalibus ru- 

 gosis et subnodosis instructae. — Alt. 27, long. 21 mill. 



Zwei neue Achatiuen. 



Von 



Dr. L. Pfeiffer. 



1. Achatina Dohrniana Pfr. 



T. ovata-conica, solida, ponderosa, parum nitida, picea ; 

 spira conica, apice obtusulo; sutura submarginata ; anfr. 8 

 convexiusculi, summi laevigati, albi, sequentes minute de- 

 cussato-granulosi , fulvi, indistincte rufo-flammulati, ultimus 

 spiram superans, irregulariter rugulosus et ad basin usque 

 minute granulatus, nigricanti-fuscus, strigis irregiilaribus ma- 

 culisque griseo-flavicantibus notatus ; columella leviter arcuata, 

 basi anguste truncata ; apertura subverticalis, acuminato-ovalis, 

 intus coerulescens, nitidissima ; perist. simplex, fusco-limbatum, 

 marginibus callo coerulescente , nitido, introrsum difFuso 

 junctis, — Long. 125, diam. 56 mill. Apert. long. 72, lat- 

 36 mill. 



Habitat Angola Africae occidentalis (Er. Rois Batalha) 



