362 
sione muscularit postica maxime strangulato ; ligumento elongato, 
crassiusculo, partim infosso. 
Hab. Van Diemen’s Land. 
203. TELLINA ABBREVIATA, Desh. T. testa late ovato-trigona, 
compressa, solidula, valde inequilaterali, albo-pellucida, transver- 
sim tenue et irregulariter striata, striis obtusis confertis ; latere 
antico lato, regulariter semi-elliptico ; latere postico brevi, superne 
recto, rapide declivi, extremitate angulato, subrostrato ; plicatura 
posticali angusta, satis profunda, duplicata, in valva dextra trans- 
versim oblique lamellosa ; cardine angusto, inequaliter bidentato, 
dentibus lateralibus validis, elongatis, antico approximato ; area 
elongata, angusta, excavata, levigata, angulo acuto circumdata. 
Hab. Ceylon. Coll. Cuming. 
204. TELLINA BREVIROSTRIS, Desh. T. testa late ovata, subtri- 
gona, minima, tenui, depressa, inequilaterali, candida, transversim 
tenue lamellosa, lamellis regularibus, brevibus, erectis, equidistan- 
tibus ; latere antico paulo longiore, late obtuso, semi-elliptico ; 
latere postico triangulari, superne recto et valde declivi, inferne 
rostro brevi terminato; flecura minima, uniangulata, angusta, 
lamellis transversis rarioribus ; area elongato-lanceolata, angusta, 
excavata, carina acuta, tenue et eleganter crenulata circumdata ; 
lunula minima, angusta, lanceolata; dentibus lateralibus, subequa- 
libus, subequidistantibus ; sinu pallit prelongo, superne gibboso, 
dein declivi. 
Hab. Central America and California. Coll. Cuming. 
205. TeLL1INA AusTRALIS, Desh. T. testa ovato-trigona, tenui, 
pellucida, compressa, subequilaterali, pallide straminea, trans- 
versim tenuissime et regulariter striata, in valva sinistra striis 
postice evanidis, in dextra continuis ; umbonibus acutis, promi- 
nentibus ; margine superiore utroque latere equaliter declivi ; 
latere antico lato, obtuso, postice attenuato, oblique truncato, 
triangulato; flecura parva, parum perspicua; cardine angusto, 
dentibus lateralibus inequalibus, antico majore, approximato; 
sinu pallii maximo, superne undulato, apice acuto. 
Hab. Australia. 
206. Tenuina Srrancei, Desh. T. testa ovato-subtrigona, 
convexiuscula, tenui, pellucida, inequilaterali, pallide lutea, 
transversim tenuissime lamellosa, striisque longitudinalibus, 
regularibus decussata; lamellis regularibus, equidistantibus, 
brevibus ; latere antico longiore, superne parum declivi, obtuso, 
postico paulo attenuato, obtuso, vir fleco, margine inferiore 
regulariter convexo; umbonibus minimis, vix prominentibus, 
lunula minima, parum excavata, lanceolata, levigata ; dentibus 
lateralibus magnis, subequalibus, equidistantibus. 
Hab. New Zealand. Coll. Cuming. 
207. TELLINA TESSELLATA, Desh. TJ. testa ovato-transversa, 
tenui, pellucida, tumidula, inequilaterali, omnino squalide fulva, 
