616 EDGAR A. SMITH. 
which is a parallel furrow and then a raised ridge or rounded keel. The convex side is covered 
with a thin yellow pellicle and is marked with lines of growth. 
241. Polinices mamilla, Lamarck (Natica mamilla, Reeve, 37,/X.) III, IX, XII, XV. 
242. Polinices albumen, Lamarck (Watica albumen, Reeve, 37,7X.) IL 
243. Mamilla melanostoma, Lamarck (Watica melanostoma, Reeve, 37,7X.) VI, XV. 
244, Mamilla simiae, Deshayes (Natica simiae, Reeve, 37,/X.) IX. 
Family IANTHINIDAE. 
245. Ianthina communis, Lamarck? 37, X/, IX. 
The figures most resembling the specimens from the above station are Reeve’s figures of 
I. affinis (figs. 2 a,b). That so-called species and several others described in the same monograph 
are probably mere varieties of one variable species. (See Tryon, Man. Conch. vol. 1x. pp. 36, 37.) 
Family SCALIDAE. 
246. Scala replicata, Sowerby (Scalaria replicata, Sowerby, 40, 6,7.) IX. 
247. Scala consors, Crosse and Fischer (Scalaria consors, Tryon, 41, 7X.) XI. 
A single example considerably larger than the type, being 18mm. long, and 7 mm. in width. 
The locality given by Crosse and Fischer is St Vincent’s Gulf, 8S. Australia, but four specimens, 
supposed to include the type among them, were presented to the British Museum in 1870 by 
Mr G. F. Angas and were marked “Ceylon” by him. The Maldive example has a dark line at 
the suture. 
248. Scala (Cirsotrema) texta, n. sp. (Pl. XXXV. fig. 23). X. 
Testa elongata, subulata, imperforata, solidiuscula, albida, longitudinaliter plus minus plicata, 
varicibus paucis obliquis instructa, spiraliter suleata et tenuiter punctato-striata, lineis incrementi 
tenuissimis obliquis sculpta; anfractus circiter 12, supra valde declives, vix concavi, in medio obtuse 
angulati, sutura obliqua irregulariter corrugata sejuncti, ultimus ad peripheriam angulatus, costis ad 
angulos subnodosis; apertura oblique ovata; peristoma continuum, expansum, margine externo varice 
crasso circumdato. Longit. 17 mm., diam. 5; apertura intus 3 longa, 2 lata. 
This very distinct species is well-characterized by the fine cancellated sculpture, like a piece 
of linen, the interstices being minutely punctate. The whorls exhibit spiral shallow sulci and 
intervening raised ridges, both the latter and the grooves being covered with the spiral and longi- 
tudinal striae. Every second or third whorl exhibits an oblique varix, and the upper ends of the 
plicae form a very irregular puckered or dentate sutural line. 
Allied to S. bicarinata, Sowerby, but much larger, of different form, differently plicate and 
spirally sulcate. 
Family PYRAMIDELLIDAE. 
249, Pyramidella corrugata, Lamarck, 23. XV. 
250, Pyramidella nodicincta, A. Adams, 40,b,//. XIV. 
251, Obeliscus dolabratus, Linn. (0. dolabratus and O. terebellwm,° 40,6, II.) IX, XV. 
