142 Zuulugical Society. 



20. Natica Salangonensis. Nat. testd ovatd seu oblongil, 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, 

 suprcl crassd, superne angido transvei'so calloso instructd, ad um- 

 bilicum stilco notatd ; umbilico profunda, coarctato,fiilvo-aurantio ; 

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

 ntiato modificato. 



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

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

 sed diver sa. 



Hab. " Salango, We?t Colombia ; found in sandy mud." H. Cu- 

 ming. 



21. Natica pyriformis. Nat. testd oblongo-pyriformi, lacted, sub- 

 striatd, nitidd ; anfractibus 5-6 convexiusculis, elongatis, superni 

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

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

 semilunari, angustatd; columelld rectiusculd, extils superne callosd, 

 basi cum funiculo supra compresso consolidatd, umbilico parvo, 

 externe occultunte et canali arcuato profunda angustante ; labro 

 tenuiusculo, suhpeUucido . 



Spird interduiii superne lutescente. Anfractus ultimus scepe tenuiter 

 striatus : striis inter oculum et lumen hjalinis. 



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, Linni, 

 Mus. Lud. Olr. p. 675. no. 386. Natica straminea, 7iabis olim. 

 Natica sulj^hurea, quorundam. 



Hab. " Philippines ; found on the reefs." H. Cuming. Var. j3. 

 Amboina, Timor (Mus. Paris). 



B. Umbilicum nudum, pervium, 7iec funiculattim. 

 * Testa subglobosa, operculum cartilagineum. 



23. Natica violacea, Sowerby, Tankerville Catal. 

 Natica amethystina, Lamarck's collection. 



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

 luteis seu dilute chocolatis superioribus characteriformibus, medi- 

 anis quadrat is, infer ioribus oblongis quinque seriatis pictd ; colu- 

 melld intiis et extiis pulchre raseo-violaced. 

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

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

 mud." H. Cuming. 



24. Natica Buriasiensis. Nat. testd parvuld, ventricoso-globasd, 

 subepidermide lutea-oUvaceo albd, nitidd, leevigatd, lineis luteis 

 longitudinalibns undulatis crebris, interdum maculis albis majaribus 



