476 SPIRAXIS §. 4. 5. 



30. Dysoni Pfr., Shuttl. in Bern. Mittheil. >I852. 

 p. 2 08. {Achat. Dysoni Pfr. Mon. N. 78. — Reeve 

 N. 99. t. 19.) Mon.ll. p. 270. 



31. Sp. flavescens Shuttleworth. ^ 



T. oblongo-ovata, tenuis, nitidula, obsolete striatula, cor- 

 neo-albida, strigis flavescentibus remotis ornata; spira conica, 

 obtusa; anfr. 6 planulati, ultimus % longitudinis aequans; su- 

 tura leviter crenulata; lamina columellaris basi abrupte trun- 

 cata; apertura angusta, subauriformis; perist. simplex, acutum, 

 flexuosum. — Long. 16, diam. 8 mill. Ap. 11 raill. longa, 

 medio 3 lata. (Sh.) 



Spiraxis flavescens Shuttl. in Bern. Mittheil. 18521. p. 206. 

 Habitat Cordova, Vera Cruz (Jacot-Guillarraod). 



32. Sp. lymneiformis Shuttleworth. •]* 



T. oblongo-conica, tenuis, striatula, pallide flavescenti- 

 cornea, strigis saturatioribus angustis notata; spira conica, 

 elongata, obtusiuscula ; anfr. 7 vix convexiusculi, ultimus spi- 

 ram paulo superans; plica columeliaris tenuis, basi vix trun- 

 cata; apertura oblongo-subauriformis; perist. simplex, acutum. 

 — Long. 17, diam. 7 mill. Ap. 9 mill. longa, Sy^ lata. (Sh.) 

 Spiraxis lipnneiformis Slvuttl. in Bern. Mittheil. 1852. p. 206. 

 Habitat Cordova, Vera Cruz (Jacot-Guillarraod). 



33. Sp. physodes Shuttleworth. 



T. subfusiforrai-oblonga , solidula, laevigata, nitida, fulves- 

 centi-albida ; spira convexo-conica, apice obtusiuscula; sutura 

 marginala; anfr. 6 vix convexiusculi, ultiraus % longitudinis 

 aequans, basi parura attenuatus; columella lamina compressa 

 intorta raunita, non truncata ; apertura angusta, sinuoso-oblonga ; 

 perist. simplex. rectum, raargine dextro superne repando, me- 

 dio anLrorsum dilatato. — Long. 13, diam. Sy^ mill. Ap. 7 

 nsill. longa, medio 2 lata. (Mus. Cuming. ) 



Spiraxis physodes Shuttl. in Bern. Mittheil. 1852. p. 207. 



Achatina physodes Pfr. m Chemn. ed. II. Bul. t. 26. f. 20. 21. 

 Ach. N. 48. 

 llabilat Cordova, Vera Gruz (Jacot-Guillarmod). 



§. 5. 



34. Sp. Richardi Pfr. 



T. ventroso-subfusiformis , tenuiuscula, plicis confertis lon- 

 gitudinalibus, infra mediuni anfractus ullirai obsoletis, lineisque 

 spiralibus confertis undique sculpta, diaphana, corneo -fulva, 



