PLEUROTOMA.— Plate IX. 



species, one in Mr. Gray's cabinet, and the other in that 

 of Mr. Cuming. 



Species 75. (Mus. Cuming.) 



Pleurotoma regia. Pleur. testd elongato-turritd, ma- 

 culis grandibus albis et rubris eximii tessellatd ; an- 

 fractibus medio nodulis biseriatim cinctis, supra Icevi- 

 bits, concavis, infra granulosis ; sinu purvo ; canali 

 brevi, subrecurvo. 



The royal Pleuuotoma. Shell elongately turrited, 

 beautifully tessellated throughout with large spots 

 of white and red ; whorls encircled round the mid- 

 dle with a double row of nodules, concave and 

 smooth above, granulated below ; sinus small ; ca- 

 nal short, a little recurved. 



Beck, MSS. Mus. King of Denmark. 



Reeve, Conch. Syst., vol. ii. p. 187. pi. 233. f. 7. 



Hub. Amboyna. 



This is an extremely pretty shell, and highly deserves 

 the title appended to it in the King of Denmark's Mu- 

 seum, at Copenhagen, by my excellent friend Dr. Beck. 



Species 76. (Mus. Cuming.) 



Pleurotoma incrassata. Pleur. testd acuminato-pg- 

 ramidali, crassd, nigricante ; anfractibus prope su- 

 turam obsolete carinatis, carind interruptd, infra 

 longitudinaliter costellaiis, costellis granosis, Uriels 

 elevatiusculis decussatis ; labro prope marginem in- 

 crassata , sinu lato ; canali brevi. 



The thickened Pleurotoma. Shell acuminately py- 

 ramidal, thick, blackish ; whorls obsoletely keeled 

 near the suture, keel interrupted, longitudinally 

 ribbed beneath, ribs grained and crossed with raised 

 lines ; Up thickened near the edge ; sinus broad ; 

 canal short. 



Sowerbt, Pro. Zool. Soc, 1833. 



Pleurotoma Bottte, Valenciennes. 



Hab. Bay of Panama, &c. (found in sandy mud at the 

 depth of from six to ten fathoms) ; Cuming. 



I have no doubt but that this shell is the Pleurotoma 

 Bottte of Valenciennes, described and figured in Kiener's 

 ' Iconographie des Coquilles vivantes.' 



Species 77. (Mus. Stainforth.) 



Pleurotoma albina. Pleur. testd fusiformi-turritd, 

 albd, decussatim striata, striis transversis subtilissime 

 rubido-punctatis ; anfractibus medio plano-carinatis, 



carind maculis parvis rubidis quadratis equidistantibus 

 ornatd ; canali elungato, gracili. 



The lime-white Pleurotoma. Shell fusiformly tur- 

 rited, white, decussately striated, transverse stris 

 painted with the finest imaginable reddish brown 

 dots ; whorls flatly keeled round the middle, keel 

 ornamented with small square equidistant reddish 

 brown spots ; canal long and slender. 



Lamarck, Anim. sans vert., vol. vii. p. 96. 



Hab. Island of Cerat, Molluccas ; Hinds. 



An extremely delicate shell, remarkable on account of 

 the squareness and equidistant arrangement of the spots 

 which ornament the flattened keel formed by the filling 

 up of the labral slit. 



Species 78. (Mus. Cuming.) 



Pleurotoma duplicata. Pleur. testa acuminata -turrit d, 

 pallida, epidermide corned fused indutd ; anfractibus 

 snperne obsolete unicarinatis, medio tuberculato-cos- 

 talis, tuberculis lineis duabus elevatis regulariter de- 

 cussatis, anfractu ultimo ubique lineato; canali brevi. 



The double-line Pleurotoma. Shell acuminately 

 turrited, pale, covered with a dark horny epidermis ; 

 whorls obsoletely keeled round the upper part, tu- 

 berculously ribbed down the lower, tubercles regu- 

 larly crossed with a pair of elevated lines, last 

 whorl lineated throughout , canal short. 



Sowerby, Pro. Zool. Soc, 1843. 



Hab. Puerto Portrero and Bay of Montija, Central Ame- 

 rica (found in sandy mud at the depth of ten fa- 

 thoms) ; Cuming. 



Species 79. (Mus. Cuming.) 



Pleurotoma venusta. Pleur. testd obeso-fusiformi, 

 flavicante, fusco-maculatd ; anfractibus rotundatis, 

 transversim multicostatis, oblique maculatis, superni 

 depressis, maculis majoribus vivide pictis ; canali 

 elongate 



The comely Pleurotoma. Shell stoutly fusiform, yel- 

 lowish, spotted with dark brown ; whorls rounded, 

 transversely many-ribbed, obliquely spotted, upper 

 part depressed, vividly painted with larger spots ; 

 canal long. 



Reeve, Pro. Zool. Soc, 1843. 



Hab. Island of Siquijor, Philippines (found in coral sand 

 on the reefs at low water) ; Cuming. 



This highly interesting shell, which is at present unique 

 in Mr. Cuming's collection, diners materially, both in 

 form and in the colour and character of the marking, 

 from any of its congeners. 



