M E L A N I A . 



Plate XIII. 



Species 79. (Mus. Cuming.) 



Melania Timorensis. Mel. testa acute stibulatd, tenui, 

 pellucido-olivaced, rufo jiammulatd et punctata, an- 

 fractibu novem ad decern, spiraliter lineari-sulcalis, 

 ultimo mperrie plicato ; aperturd subangusQ ovatd. 



The Timor Melania. Shell sharply subulate, thin, 

 transparent-olive, flamed and dotted with red, whorls 

 nine to ten, spirally linearly grooved, the last plicated 

 round the upper part ; aperture rather narrowly ovate. 



Hab. Timor. 



As in the larger M. Mindoroensis, the red dots are not 

 in the linear grooves, but on the intermediate ridges. 



Fig. 80. (Mus. Cuming.) 



A careful comparison of this shell with M. sobria proves 

 it to be the young of that species. 



lies 81. (Mus. Cuming.) 



Melania Venezuelensis. Mel. testa mbulatd, oliva- 

 ceo-viridi, anfractibus septem ad octo, subrotundatis, 

 Iambus, vpiraliter lineari-sulcatis, sulcis sttbdistantir 

 bus ; aperturd part . -effusd. 



The Venezuela. Melania. Shell subulate, olive-green, 

 whorls seven to eight, somewhat rounded, smooth, 

 spirally linearly grooved, grooves somewhat di 

 aperture small, recurvedly effused at the base. 



Dunkek, MS. in Mus. Cuming. 



Sab. Porto Cabello, Venezuela. 



A well-marked, spirally grooved shell, recurvedly effused 

 at the base, approaching to the local typical character of 

 the species constituting Mr. Swainson's genus Hemisinus. 



Species 82. (Mus. Cuming.) 



Melania Austealis. Mel. testa ovatd, subventricosd, 

 lutescente-olivaced, anfractibus \ei ad septem, longi- 

 tudinaliter arcuato-plicatis, plicis varicosis, distanti- 

 bus ; aperturd ovatd, labro superne subsinuato. 



The Southern Melania. Shell ovate, somewhat ven- 

 tricose, yellowish-olive, whorls six to seven, longitu- 

 dinally arcuately plicated, plaits varicose, distant ; 

 aperture ovate, lip slightly sinuated at the upper part. 



Hab. Victoria Paver, North Australia. 



Plicated longitudinally in a concentric, arched manner, 

 while the plaits are so distant as to have the appearance of 

 varices. 



Species 83. (Mus. V. d. Busch.) 



Melania aeachnoidea. Mel. testa turritd, olit 

 '. anfractibus decern ad undecim, rolundali 

 raliter valide crebriliratis, primis paucis longiludina- 

 liter subplicatis, lira central'*, in carinam conspicue ele- 

 vatd, suturis profundi impressis ; aperturd pared. 



The spider Melania. Shell turreted, olive-green, 

 whorls ten to eleven, rounded, spirally strongly 

 closely ridged throughout, the first few longitudinally 

 faintly plicated, with the central ridge prominently 

 developed into the keel, sutures deeply impressed : 

 aperture small. 



Anthony, Annals Lye. Nat. Hist. New York, 1854, p. 95. 



Hab. Tennessee, United States (in a small stream empty- 

 ing itself into the Tennessee river) ; Anthony. 



A slender, deeply-sutured, turriculated shell, encircled 

 throughout with ridges like prominent close-set rings, and 

 in the earlier whorls the central ridge is developed into a 

 conspicuous keel, with slight longitudinal plications show- 

 ing a curious change of sculpture. 



Species 84. (Mus. V. d. Busch.) 



Melania perfecta. Mi-/, ti-.sfd mbturriculatd, nigra, 



anfractibus octo ad novem, primis paucis plano-con- 



vexis, lavibus, cateris rotundalis, spiraliter noduloso- 



liratis, et obsolete longitudinaliter plicatis ; aperturd 



i -id. 



The finished Melania. Shell somewhat turriculated, 

 black, whorls eight to uine, the first few flatly convex 

 and smooth, the rest rounded, spirally nodulously 

 ridged, and obsoletely longitudinally plicated ; aper- 

 ture small, effused at the base. 



Moussoi . Land und Suss. Moll, von Java, p. 110. pi. 22. 

 f. 5. 



Hab. Java. 



The specimen here figured is smaller and less conspicu- 

 ously sculptured than that figured by M. Mousson, but 

 n was received from him, and its authenticity may be re- 

 lied on. 



December, 1859. 



