6 NERlTID.i:. 



minima; colore luteo-flavescente rubro reticulata; intus flave- 

 pcente-pallida ; aliquando cserulescente ; non raro fasciis duobus 

 cincta in apertura facilius visis. Epidermide plerumque nigro 

 colore, extraneo fucato ; semipolita, opercvilo pallide aurantiaco, 

 margine anteriore rubro. 



Alt. 12-5, diam. 12-5 mm. (from fig. 266 in Tbes. Conch.). 



Hab. Burma, near Amrapoora. 



11. Theodoxis reticularis {Soiverhj). 



Theodoxis -reticularis (Sowerby ) (for Neritvm retindnfa, Bens, not 

 Sow. in P. Z. S.), Conch. Illust., Ner. fig. 44; Thes. Conch, ii. 

 p. 536, figs. 264, 26.5 ; H. & T., C. I. pi. 157, figs, 5, 6. 



I^eritina Inaneralis, Th. (name onl}'). 



Original description : — Testa subconica, bievi, pallide fulva, 

 nifescente, epidermide tenui, subviridi induta, lineis angulatis 

 transverse reticulata; spira plerumque exsertiuscuia, apice sub- 

 complanato, anfractu ultimo, supra suturam angulatim elevato, 

 infra medium ventricoso ; apertura subcontracta, labio externo 

 superne declivo, infra medium producto ; columella tumida, margiue 

 sublsevigato. 



Alt. IT), diam. maj. ]o mm. (from fig. 264 in Thes. Conch.). 



Bab. Calcutta. 



12. Theodoxis obtusa (Se/woji). 



^'eriti7ia ohtusa, Benson, in Sow. Conch. Illust., Ner. fig. 43; Thes. 



Conch, ii, p. 517, pi. Ill, figs. 72, 73. 

 Neritifia spiralis, Reeve, Conch. Icon., Ker. fig. 99 (from tvpe) ; 



H. & T., C. I. pi. 157, fig. 7. 



Original description : — Testa transverse ovali, leviter striata, 

 epidermide subviridi induta ; spira depressa, aufractibus duobus ; 

 apertura magna, subcinerea ; labio externo interne crassiusculo ; 

 labio interno complanato, recedente, margine sinistro oblique 

 acuto, margine dextro in medio subarcuato, subcrenulato. Operculo 

 cineieo. 



Alt. 10, diam. maj. 12-5 mm. (from fig. 72 in Tbes. Conch.). 



Hab. Banks of the Ganges, Calcutta. 



Genus SEPTARIA. 



Septaria, Ferussac, Essai Meth. Conch., I'aiis, 1807, p. 61. 



Navicellu, Lamarck, 1809. 



Citnber, de Montfort, 1810. 



Sandalnwi, pars, Schumacher, 1817. 



Catillifs, Humphre}', 1797, fide Swainson, 1640. 



Type, Patella porcellana, Jjinn. : Islands of Bourbon, Bodriguez, 

 Mauritius, and Madagascar. 



Range. S. Asia ; N. Australia ; Malaysia ; Tropical Islands of 

 Indian and Pacific Oceans. 



