(50 HI.LIX-PAPUINA. 



H. STRABO Brazier. PI. 2, figs. 22, 23 (typical); figs. 17, 18, 19, 



21. 25, _>; (row.). 



Iniperforate, low-trochiform, spire conical, apex obtuse; whorls 

 I . the hist one acutely carinated, slightly deflexed in front. Sur- 

 face shinini:, obliquely, finely and irregularly corrugated, as in H. 

 t<m?n''ina. Color creamy-white, unicolored or with spiral bands, 

 the parietal wall and base in front of the aperture flushed with pink. 

 Ap'-rtmv very oblique ; lip broadly bordered with pink (or purple), 

 bi>imiate above, produced into a "spout' or beak at the keel, 

 expanded below, the columellar margin adherent to the base. 



Alt. 18, diam. .SO mill. 



Southern Xeiv Guinea at Katau River, and Maclachie Point. 



H. strabo BRAZIER, Proc. Linn. Soc. N. S. Wales, i, p. 106, 1876. 



-//. rotent'ibiata E. A. SMITH, Ann. Mag. N. H. xix, p. 421, t. 15, 

 f. 2. H. katauensis TAPF. CAN., Annali Mus. Civ. Genov. xix, p. 

 126, t. 3, f. 1, 3 ; t. vi, f. 3. (Anatomy). 



Distinguished from the closely allied H. tayloriana by its rosy or 

 lilac-purplish lip, absence of a well-defined peripheral white girdle, 

 and general pattern of coloring. The apex is either black, corneous 

 or white. The following color-varieties have but slight claims to 

 even varietal rank ; the large series before me showing great varia- 

 tion- in color-pattern, as well as typical examples of the several 

 described forms. 



The typical strabo (pi. 2, figs. 22, 23) is unicolored creamy-white 

 witli rose-pink lip. Four of the specimens before me have the lip 

 purple. 



Form roseolabiata Smith (pi. 2, figs. 17, 18). Creamy-white ; 

 apical whorls blue-black; periphery girdled with a sharply 



brown band, another band bordering the suture ; lip rosy. 

 I>laml, D'Entrecasteaux Group. 



l-'.nn kufiiuanxis Tapp. Can. (pi. 1, figs. 14, 15; pi. 2, figs. 24, 

 I'."). _'' . Variously obliquely streaked and having spiral bands of 

 purplish-brown ; lip pink. 



II. RHOMBOSTOMA I'f'eiifer. PI. 16, figs. 14, 15. 



[mperforate, trodiiibnn, rather thin, obliquely striatulate, sub- 

 <!<( -u-at. ..I with very close concentric lines, rather shining, whitish- 

 tawny, ornamental with a number of chestnut bands; spire short, 

 ape\ acute. NVhorU 5, -rather flat, the last acutely carinated, 

 1'iL'htly convex beneath, little descending in front; peristome 



