PSEUDACIIATINA. 597 



Long. 78, diam. 32 mill. Ap. intus 33 mill. lonqa, 18 lata. 

 (Coll. Nr. 1.) ' 



BuUnus Wrightii Soiv. Descr. of a ncw Bulinus, 1853 c. ic. 

 Bidimus Wrighli (Pseiulacliatina) Pfr. Vers. p 156. 

 Pseudachatina Wrightii H. et A. Adams Gen. II. p. 13 4. 



— — Shuttl. Notit. Malac. I. p. 90. t. 9. f. 1. 2. 

 Habitat in ora occiclentali Africae. 



2. Ps. Dennisoni Pfr. 



T. ovato-conica, solidula, plicis validis distantibus, minori- 

 busque interjectis sculpta , sub epidermide decidua fulvida rosea, 

 plerumque strigis triangularibus nigricantibus et fascia interrupta 

 suturali ornata; spira conica, apice obtusa, nigricans; sutura 

 undulata, non marginata; anfr. 1^/^ modice convexi, ultimus 

 superne turgidus, infra medium subcarinatus, nigricans; colu- 

 mella compressa, alba, torta; apertura obliqua, sinuato-ovalis; 

 perist. tenue, breviter expansum, marg-inibus callo albo junctis. 

 — Long. 77, diam. 32 mill. Ap. 32 mill. longa, medio 18 lata. 

 (Mus. Cuming.) 



Pseudachatina Dennisoni Pfr. in Malak. Bl. III. 1856. p. 257. 



Bulimus Doivnesii var. Beeve Conch. ic. t. 29. f. 177^. 

 Ilabitat Gabon Africae occidentalis. 



;3. Ps. Downcsii Gray. 



«T. ovato-turrita , solida, grosse ct crebre rugoso-plicata 

 (plicis irregulariter pustulosis), nitida, albida vel pallide rufe- 

 scens, basi castanea; spira elata, apice obtusa; anfr. 8 planu- 

 lati, ultimus % longitudinis paulo superans, obsolete angulatus; 

 sulura linearis , anguste marginata et crenata ; columella crassi- 

 uscula, intorta, basi truncata; apertura lunato-ovalis; perist. 

 incrassatum, reflexo-patulum, carneum, marginibus callo tenui 

 ad basin columellae extus incrassato junctis. — Long. 65, diam. 

 30 mill. Ap. 28 miU. longa, 18 lata.» (Sh. — CoiL Nr. 2.) 



Bulinus Downesii Gray in Sow. Conch. 111. Bul. f. 99. 



Achatina Leaiana Grat. Bord. XL p. 416. t. 2. f. 7. 



— Downesii Pfr. Symb. L p. 46. 



— — (PseudaclifRna) Alb. Hehc. p. 192. 

 Bulinms Downesii Pfr. Mon. Helic. II. p. 15. III. p. 301 c\cl. 



synon. Desh. 



— — BeeVG Conch. ic. t. 29. f. 177 ». 



— — (Pseudachatina) Pfr. Vers. p. 156. 

 Pseiidachatina Downesii II. ct A. Adams Gen. 11. p. 134. t. 75. f. 1. 



— — Shuttl. Nolit. malac. 1. p. 85. l. 9. f. 3. 4. 

 Habitat in insulis Fernando Po et Principis. 



