.^TnEiaiDi:. 197 



Family .ETHEPtllD^. 



Subfamily .^TPIERIINiE. 



Shell irregular, free or attached, covered with a periostracuin, 

 interiorly nacreous or subnacreoiis ; Innge edentiilate ; ligament 

 linuear, subinterual ; sometimes with two adductor scars on the 

 valves, sometimes w ith only tlie posterior ; pallial line entire. 



Animal tluviatile ; mantlB open ; branchial orifice communi- 

 cating with the pedal orifice; anal orifice closed; foot absent ; 

 palpes large, semi-ovate ; gills unequal, folded, uniting behind 

 together with the visceral sac and the mantle. 



Distribution. Tropical Africa ; S. India : United States of 

 Colombia. 



Genus MULLERIA. 



Mulleria, Ferussac, Mem. Soc. Hist. Nat. Paris, 1824, i, part -, 

 pp. 3G8-u69 ; Sowerby, Conch. Icon, xviii, 1872. 



Type, Mulleria lohata, Ferussac, from the U.S. of Colombia. 



Range. United States of Colombia and Southern India. 



Translation of original description: — Sliell attached, inequi- 

 vidve, irregular [in form] ; valves joined by an exterior ligament, 

 short, lateral, and by a sinuous hinge furnished with oblique 

 fossettes, in which are enclosed corresponding projections, both 

 being ornamented with a ligamental appendage. 



323. Mulleria dalyi, jSmith. 



Mulleria dtih/l, Smith, Proc. Malac. Soc. iii, 1898. p. 14, figs, in 

 text; "Woodward [Anatomy], torn. cit. p. f<7, figs, in text. 



Original descrijitio'n : — Testa irregulariter ([uadrata, sed postice 

 produeta et rotundata, compressa, inaequivalvis ; valvaj mediocriter 

 crassse. intus margaritaceie, iridescentes, olivaceo plus minus 

 maculate et ad marginem olivaceo-fusco linibatje, extus sub perio- 

 straco subfibroso, nigro-fusco, fortiter concentrice striato, ex 

 laniinis albis calcareis et aliis cornels fuscescentibns constitse ; 

 valva adhan'ens irregulariter pianata, altera convexior, plus minus 

 erosa ; cicatrix nuisculi posterioris magna, elongata vel rotundata, 

 mediocriter profunda, concentrice et radiatim striata ; linea pallii 

 irregularis, punctata, ad marginem superior! fere attingens ; margo 

 dorsi rectus, ligamento valido per totam longitudineni instructus. 



Long. 52, lat. G5, diam. 20 mm. 



Sub. Kadur District, Mysore. 



After comparing it with the S. American species of the genus 



the author makes the following remarks " the nacre 



exhibits an iridescent mixture of white, bluish, greenish, olive and 

 pinkish tints, whilst the margin is olive-brown. The exterior, 

 also, is of a rich deep brown or blackish-browji ' 



