PLATE IV. 



Fk'. ... 1. Pholadomya PEDisuLCATA, iS/!o/., p. 81 ; side- and upper views of a large specimen 

 with the shell preserved, (comp. pi. xvi, fig. 26) ; Garudamungalum, Tnchmopoly 

 group. 



Fi"-. ... 2. YoLDiA STRiATDLA, Vorh., (vide postea, fam. Nvcvlanjdje) , natural size and enlarged 

 views of the type specimen ; Fondicherry, Arrialoor group. 



Fi"-. ... 3. Tagellus Albertinus, d'Orh., p. 102 ; side- and umbonal views of the left valve; 

 ComarapolUam, Arrialoor group. 



Fig. ... i. Ceromya SUBSINUATA, i^bri., p. 78 ; side- and front- views of a perfect specimen ; 

 twice the natural size ; Pondkherry , Valudayur group. 



Fig. ... 5. Bakoda [Icanotia] Pondicherriensis, Forb., p. 167 ; side- and umbonal views of 

 the original specimen ; Moraviatoor, Ootatoor group. 



Figs. 6—8. Tellina [Paljiomcera] inconspicua, Forb., p. 129. 6 a, cast showing the muscular 

 and pallial impressions ; 7, left valve; 8, right valve, the posterior portion of the 

 shell completed from another specimen ; 8 a and 8 5, a nearly perfect specimen ; 

 the last is from Alundanapooram, the others from Garudamimgalum, Trichinopoly 

 group. 



Fig. ... 9. Tell. [Arcopagia] mendosa, StoL, p. 127; side- and umbonal views of a per- 

 fect cast; Odium, Ootatoor group. 



Figs. 10—13. Tell. [? Peron^oderma] scitulina, StoL, p. 126; 10, side- and inner views of 

 right valve, twice the natural size; 11 aud lib, outer and inner views of a 

 left valve; 11 «, front-view restored from two valves; 12, short triangular 

 variety; 13, peculiarly elongated variety, all natural size; ComarapoUiaM, 

 Arrialoor group. 



Fig. ... 14. Tell. [Tellinides] adpressa, StoL, p. 128; side-, front-, and iuuer views of a 

 right valve, twice the natural size, partially restored ; Moraviatoor, Ootatoor 

 group. 



Fig. ... 15. Tell. [Arcopagia] discites, Slol, p. 128 ; side-, front-, and inner views, natural 

 size ; Moraviatoor, Ootatoor group. 



Fio-. ... 16. Baroda [Icanotia] elicita, StoL, p. 168; 16, upper view of a somewhat imperfect 

 specimen; 16a, a perfect left valve; Karapaudy, Arrialoor group. 



