SILIQUARIA. 189 



Var. LiNEATA, Morch. Whitish, whorls with close longitudinal 

 light orange-colored lines below. 



S. ENCAUSTiCA, Morch. PI. 57, fig. 13. 



Small, thick, rugose, irregularly pyramidal, pointed, tube small, 

 umbilical region covered by an enameled callus, thickened, 

 roughly wrinkled and transversely fissured on the peripheral 

 side; slit closed in the upper whorls, then articulated, finally 



open, continuous. 



Ceylon. 



Described from a single specimen in the Cumingian collection. 

 S. TROCHLEARis, Morch. PI. 57, fig. 14. 



Rather thin, umbilicus narrow, pervious ; whorls 6, at first 

 close, then dissolute, plane above and below, transversely 

 densely rugosely fissured, longitudinall}- very obsoletely striate 

 and sulcate, with yellowish spiral lines, slit undulately dentate. 



Philippines. 

 S. OBTUSA, Schum. PL 57, figs. 15, 16. 



Shell elongated, whorls large, spirally rather finely li rated, 

 smoother on the umbilical face, thickened on the outside and 

 transversely fissured ; spiral slit simple, frequently'' closed 

 towards the apex. 



Mediterranean Sea. 



It is S. anguina.^ of Phil., Sowb., etc., but not of Linnjeus, 

 There are Vars. rosea, Montr., and cost/E, Cantraine. 



Section Agathirses, Montfort, 1810. 

 S. AcsTRALis, Quoy and Gaimard. PI. 58, fig. 20 ; PI. 57, fig. 17. 

 Shell large, thick, apex pyramidal, tube finely longitudinally 

 striated on the inner side, thick, rugose and transversely fissured 

 on the outer side, slit represented hy round holes, gaping open 

 near the aperture. 



Australia. 

 Morch describes Vars. scalariformis, multiltrata and 

 TjEniata (fig. 17). 



S. Reentzii, Morch. 



Graceful, obsoletely longitudinally lirulate, rust color, whitish 

 towards the aperture, with a chestnut line below the slit. First 

 described as Y^v. ferrucjinea oi S. Australis. 



