new Species o/'Pleurotomidge. 309 



anfract. 12, superne juxta sutiiram carinati, infra carinam con- 

 cavi et spiraliter exiliter striati, inferne tuberculorum magnorum 

 10 seriebus instruct!, a tuberculis singulis decurrunt costae duo no- 

 dosse ; anfr. ultimus supra costas tenues nodulis flavis 4 (qui 

 series spirales 4 formant) ornatus, striis spiralibus tenuibus incre- 

 mentique lineis insculptus, longe pone labrum incrassatus ; aper- 

 tura parva, intus fuscescens, longit. totius | adaequans ; columella 

 callo crassiusculo fuscescenti juxta suturam valde tuberculosa 

 induta ; labrum supra nodulas mediocriter sinuatum ; canalia 

 brevissimus. 

 Long. 21 mill., diam. 7. 



Hah. ? 



The general colour of this shell is dirty yellowish, the lower 

 half of the upper whorls between the nodules being black, as 

 is also tlie middle portion of the body- whorl. The four spiral 

 series of little tubercles on the fine ribs of the last whorl are 

 bright yellow. That two riblets bifurcate from each of the 

 large tubercles is very remarkable. 



Pleurotoma {Mangilia) fulgens. 



Testa ovata, subturrita, nitens, alba, supra costam ultimam anfr. 

 ultimi macula parva, pallide fusca notata ; anfractua 6, primi 2 

 lajves, couvexi, caeteri paululum minus convexi, aliquanto supra 

 medium obsolete angulati, costis fere rectis 11-12 (in anfr. ultimo 

 fere ad basira continuis, ultima pone labruoa quam cseteris valde 

 majore) instructi, et liris spiralibus 3-4 supra costas leviter iu- 

 crassatis, et supra angulum obsoletum liris aliis duabus tenuiori- 

 bus cincti ; anfr. ultimus liris 16-18, quarum circiter 8 circa 

 caudam quam superioribus confertiores sunt, ornatus ; apertura 

 anguste ovata, longit. totius \ sequans ; labrum extra incrassa- 

 tum, superne satis distincte sinuatum, intus infra sinum uniden- 

 tatum ; columella tenuiter callosa ; canalis brevis, angustus. 



Long. 5 mill., diam. 2. 



Hab. ? 



The pale dot on the last rib is so small and indistinct that 

 it might easily be overlooked. The uppermost of the three 

 or four chief spiral lirations is situated a little above the 

 middle of the whorls, and it is at this point that they appear 

 to be slightly angulated. 



Pleurotoma {Mangilia) notabilis. 



Testa ovata, turrita, alba, transversim flavesccnti fasciata ; anfractus 

 6, supremi duo Iseves, convexi, cteteri convoxiusculi, costis paulu- 

 lum obliquis circiter 11 (in anfr. ultimo basi continuis) instructi, 

 ubique spiraliter conspicue (proecipue inter costas) striati ; anfr. 



Ann. & Mag. N. Hist. Ser. 6. Vol ii. 22 



