178 
mitates latiore, dentibus cardinalibus duobus inequalibus in utraque 
valva, dente postico brevissimo ; fossula ligamenti brevi angusta. 
An Erycina Cuvieri, var. junior? 
Unicum specimen vidi. 
Hab. Ynsula Burias Philippinarum. 
23. ScINTILLA HYDROPHANA, Desh. S. testa regulariter ellip- 
tica, transversa, subequilaterali, compressa, tenui, pellucida, 
hyalina, corneo-pallide flavescente, subsymmetrica, equaliter extre- 
mitatibus obtusa, paulo hiante ; latere antico paulo breviore; um- 
bonibus minimis, acutis, oppositis, brevibus ; margine cardinali fere 
recto, inferiori rectiusculo parallelo ; cardine angusto in utraque 
valva bidentato ; dentibus inequalibus angustis minutissimis ; dente 
postitali brevissimo, acuto. 
Hab. Zambalis, in insula Luzonica Philippinarum. 
24. Scintryxa puprica, Desh. _ S. testa ovato-transversa, turgidula, 
oblonga, inequilaterali, roseo-purpurascente intus extusque equa- 
liter picta, nitidissima, irregulariter transversim striata, ad apices 
minutissime albo puncticulata ; puncticulis depressis, irregulariter 
sparsis ; latere antico breviori, obtuso ; umbonibus minimis, acutis, 
oppositis ; margine superiore leviter convexo, inferiore recto; 
cardine angusto in utraque valva inequaliter bidentato; dentibus 
parallelis ; dente posticali brevi, truncato, subquadrangulari. 
Hab. Insula Zebuensis Philippinarum. 
25. ScinTILLA ROSEA, Desh.  S. testa ovato-oblonga, transversa, 
turgidula, subequilaterali, rosea, ad margines intusque albescente, 
solidula, nitidissima, transversim irregulariter striata, sub lente 
longitudinaliter obsolete striolata; latere antico breviore et an- 
gustiore obtuso, postico latiore ; umbonibus minimis, obtusis, op- 
* positis ; margine superiore tantisper convexiusculo, inferiore recto ; 
cardine angusto, in utraque valva bidentato ; dentibus minimis in- 
equalibus divaricatis ; dente postico brevi, plano, truncato, sub- 
quadrangulari. 
Hab. Zambalis, in insula Luzonica Philippinarum. 
26. Scintinua Recuuziana, Desh. S. testa ovato-transversa, 
angusta, turgidula, inequilaterali, tenui, fragili, pallide purpurea, 
hyalina, nitida, transversim irregulariter leviter striata, puncticulis 
minutissimis, depressis, irregulariter adspersa ; latere antico bre- 
viort et angustiori, postico equaliter obtuso ; umbonibus minimis, 
obtusis, vie prominentibus ; cardine angusto, in valvula sinistra 
unidentato, altero edentulo ; dente posticali obsoleto. 
Haé. Australia septentrionalis. 
27. SCINTILLA PALLIDULA, Desh. S. testa ovato-transversa, ob- 
longa, turgidula, equilaterali, symmetrica, crassa, solida, albo 
pallide flavescente, apicibus pallide aurantiaca, nitida, irregulariter 
transversim substriata, irregulariter punctulis depressis minutis- 
simis adspersa ; umbonibus minimis, approximatis, acutis, oppo- 
