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Diagnosen nener Schnecken -Arten. 



Vom Dr. L. Pfeiffer. 

 1. Achatina Layardi Pfr. 



T. subfusiformi-ovata, tenuis, longitudinaliter plicatula, 

 strigis plumbeo-fuscis et rufis, nee non maculis crebris fus- 

 cis saepe pallide cinetis ornata; spira conica, obtusula; 

 sutura leviter marginata, suberenata; anfr. fere 8 conve- 

 xiusculi, superi leviter decussati, ultimus spiram superans, 

 ventrosus, basi attenuatus; columclla leviter arcuata, sub- 

 torta, late truncata, purpurea; apertura parum obliqua, an- 

 gulato-ovalis, intus coerulescenti - margaritacea; perist. Sim- 

 plex, marginibus callo purpurascente junetis, dextro intus 

 rubro-limbato. — Long. 139, diani. 66 mill. Ap. 83 mill, 

 longa, medio 36 lata. (Mus. Cuining.) 



Habitat Oiba in ora orientali Africae (Layard). 

 2. Achatina ovum Pfr. 



T. ovata, tenuis, laevigata, fulvo-lutea, strigis angustis 

 rufis, saepe maculose interruptis pieta ; spira conica, sursum 

 carnea, obtusa; sutura late marginata; anfr. 6 convexius- 

 culi, superi sub lente minute granulati, ultimus spiram paulo 

 superans, ventrosus ; columella aurantiaco - carnea , arcuato- 

 torta, basi vix truncata; apertura ampla, parum obliqua, 

 late angulato-ovalis, intus concolor, submargaritacea; perist. 

 simplex, tenue. — Long. 65 , diam. 35 mill. Ap. 38 mill. 

 longa, medio 22 lata. (Mus. Cuming.) 



Habitat ♦ . . ? 



3. Achatina fulgens Pfr. 



T. oblongo-ovata , solidula, laevigata, pellucida, nitida, 

 corneo-fulva; spira ovato- conica, apice obtusula; anfr. 6 

 convexiusculi , ad suturam anguste marginatam striatuli, 

 ultimus 3 / 7 longitudinis subaequans, basi rotundatus; colu- 

 mella perarcuata, albo-callosa, oblique sublate truncata; 

 apertura verticalis, sinuato-elliptica; perist. rectum, obtu- 



