96 



Elizabeth, &c. The ligure of the animal represents the specimen 

 as received in formalin ; the length and slimness of the double 

 tail-like appendage at the posterior extremity of the foot being 

 remarkable, and very different from other species of the genus 

 that have been figured. 



jMelapium LiNEATUM, Lamarck (Pyrula)=i?wcdwM;» biilbus, 

 Wood, Index Test. Supp- p. 12, pi. iv- fig. 8^=Melapiu)n btilbiis, 

 Auct. Dredged at Mossel Jiay, 11-19 tms. Bottom, hard, wiiii 

 clean grey sand. 



Mr. Edgar A. Smith, in his interesting paper on the genus 

 Alelapium (Ann. and Mag- of Nat. Hist., Aiarch, 1889, p. 267J, has 

 pointed out that that figured as Pynila lincata by Kiener, followed 

 by Reeve and others, is not Lamarck's species, but a much larger 

 shell of very different character, which had been described by 

 Schubert and Wagner as Mclapiiiin datum. The true M . Uncatum 

 being identical with the small, compact, finely lined shell called 

 by W ood iSiicciniiiii bitlbiis. Air. v^mith places the genus between 

 Rapana and Coralliophila, though it differs from those genera in 

 having no operculum- ITe thus describes the animal : — 



Foot oval, rather high, not truncate or bimarginate in front, in 

 length about one and a half times the width, pale beneath, 

 bordered all round above the margin with two bright red lines 

 about 2 millim. apart. Head small, compressed- Tentacles 5 or 

 6 millim. long, acutely tapering. Eyes minute at outer base of 

 the tentacles, on slight prominences. Penis compressed to to T2 

 millim. in length, obtuse at the end- Siphon shortish, mode- 

 rately acuminate- Branchiae in two plumes, the right large, the 

 left small. Odontophore most resembling that of Rapana buJbosa, 

 consisting of a tricuspid central tooth and a single acute curved 

 lateral. The central tooth is transversely elongate, and the cusps 

 arc nearly equal in size — short, acute, and approximated. 



Latikls iMBUiCATUS, n. sp. (Plate II. fig. i )■ Shell fusiform, 

 lightish lirown, covered with a darker brown periostracum, which 

 consists of scaly, waved lamina. Spire rather long, acute ; 

 whorls 7-}, the first (apical) smooth, papillary, the rest slightly 

 angular in the middle, scarcely concave above, and armed with 

 stout, somewhat distant, tubercles at the angle, everywhere 

 closely spirally ridged; suture narrowdy channelled, irregular. 

 Last whorl armed with two rows of obtuse nodules, rather square 

 in the middle, and terminating in a broadish rostrum- Aperture 

 oblong, interior smooth, stained with purple ; columella rather 

 s'raight, smooth, without plaits; canal broad and open. The 

 outer lip in the type is thin and simple, but the s])ecimen is evi- 

 dently not fully developed. 



Length, 44 ; widths 20 millim, 



Hab. ;— Tiigela River mouth N. by W., distant 18 miles. Depth, 

 46 fms. Bottom, mud. 



