MELAMPUS. 165 



Remarks. Figure 25 of plate 75 is a fac-simile of 

 Orbigny's figure of Auricula ovala. It is a good represen- 

 tation of our Florida shells. 



West Indian specimens are well known in cabinets. I 

 know of no American specimens, with the exception of 

 the few collected by Mr. Bartlett. 



PL 79, fig. 6, may represent a variety of this species. It 

 is from Texas. 



MELAMPUS FLORIDIANUS SHUTTLEWORTH. 

 PLATE LXXV. FIGURE 30. 



T. imperforata, ventroso-fusiformis, tenuis, sublasvigata, griseo-fulva ; 

 fasciis castaneis varie ornata ; spira regulariter conica, acuta ; sutura 

 linearis ; anfr. 10 plani, superiores radiato-striati, ultimus f longitudinis 

 formans, superne obsolete angulatus, versus basin vald attenuatus ; ap- 

 ertura subverticalis, angusta, utrinque angulata ; plicae parietales 2 minu- 

 t93, approximate ; plica columellaris valida, oblique ad basin producta ; 

 perist. acutum, inargine dextro (in adultis) intus plicis albis transversis 

 sub*qualibus rnunito, columellari brevi, calloso. (Pfr.) 



SYNONYMS AND REFERENCES. 



Auricula Floridiana SHUTTLEWORTH, MSS. 



JIdanipus Floridianus (Tralia) ADAMS, Proc. Zool. Soc. 1854, ii. (absq. desc.) 



PFEIFFER, Malak. Blatt. 1854; Mon. Auric. Viv. 36. 

 Tifata Floridiana ADAMS, Gen. Rec. Moll, ii. 245, absq. desc. 



DESCRIPTION. 



Animal not observed. 



Shell imperforate, ventricose, fusiform, thin, smooth, 

 grayish, with varying chestnut bands ; spire regularly 

 conic, acute ; suture linear ; whorls 10, flattened, the 

 upper ones radiately striate, the last comprising of the 

 length of the shell, obsoletely angulated above, and very 

 much smaller at its base ; aperture subvertical, narrow, 

 angular ; 2 parietal plicae, one strong, one on the columel- 

 la, obliquely continued towards the base ; peristome acute, 

 its right side in adult specimens armed with transverse, 



