142 Zoological Society. 



20. Natica Salangonensis. Nat. testd ovatd seu oblongd, caruleo- 

 fuscd seu fulvd, substriatd ; anfractibus quaternis depresso-con- 



vexis, superne conicis et zond aurantid marginatis ; spird conicd, 



obtusiusculd, pallide ccerulescente et albo fasciatd ; aperturd semi- 



rotundd, fulvo-castaned ; columelld rectd, in medio vix convexd, 



supra, crassd, superrie angulo transverso calloso instructd, ad um- 



bilicum sulco notatd ; umbilico profundo, coarctato,fulvo-aurantio ; 



canali arcuato, largo, funiculo superrie oblongo, basi sensim atte- 



nuato modificato. 



Operculum pallide fulvum, radiatim striatum, tenue, et cartilagi- 



neum. Naticae mamillaris, Lamk. (Natica fuscata, nobis) proxima 



sed diver sa. 



Hab. " Salango, West Colombia ; found in sandy mud." H. Cu- 

 ming. 



21. Natica pyriformis. Nat. testd oblong o-pyriformi, lacted, sub- 

 striatd, nitidd ; anfractibus 5—6 convexiusculis, elongatis, superne 

 declivis : infimo ventricoso-conico, superne depresso ; spird elon- 

 gatd, conicd, apice puncto fusco-notatd ; aperturd obliqud, sub- 

 semilunari, angustatd; columelld rectiusculd, extus superne callosd, 

 basi cum funiculo supra compresso consolidatd, umbilico parvo, 

 externe occultante et canali arcuato profundo angustante ; labro 

 tenuiusculo, subpellucido. 



Spird interdum superne lutescente. Anfractus ultimus scepe tenuiter 

 striatus : striis inter oculum et lumen hyalinis. 



Hab. " Ilo-Ilo, island of Panay ; found on the sand at low water," 

 H. Cuming : '* and from Huan river, Australia ; found in sandy mud 

 by Lieut. Collie, R.N., ten fathoms." 



22. Natica aurantia, Lamk. 



Var. /3. Lutea seu straminea, Nerita mamilla, var. lutea, Linne", 

 Mus. Lud. Olr. p. 675. no. 386. Natica straminea, nobis olim. 

 Natica sulphurea, quorundam. 



Hab. " Philippines ; found on the reefs." H. Cuming. Var. /3. 

 Amboina, Timor (Mus. Paris). 



B. Umbilicum nudum, pervium, nee funiculatum. 

 * Testa subglobosa, operculum cartilagineum. 



23. Natica violacea, Sowerby, Tankerville Catal. 

 Natica amethystina, Lamarck's collection. 



Var. /3. Testd globoso- ovatd, ventricosd, albd seu lacted, maculis 

 luteis seu dilute chocolatis superioribus characteriformibus, medi- 

 anis quadratis, inferioribus oblongis quinque seriatis pictd ; colu- 

 melld intus et extils pulchre roseo-violaced. 

 Hab. " Island of Ticao, Philippines ; found in coral sand at four 

 fathoms. Var. a. from the island of Masbate, Philippines ; sandy 

 mud." H. Cuming. 



24. Natica Buriasiensis. Nat. testd parvuld, ventricoso-globosd t 

 subepidermide luteo-olivaceo albd, nitidd, Icevigatd, lineis luteis 

 longitudinalibus undulatis crebris, interdum maculis albis majoribus 



