536 MANUAL OF THE MOLLUSCA. 
PLATE XVII. 
* The figures marked are left valves (interiors). 
Aviculide. 
Page 
1. Gervillia anceps, Desh. 3. Neocomian, Brit. ....... perc 
2. ‘Perna ephippinm, L,~ ¢. W. Indies 4.3. .25 sees «mene 418 
8. Inoceramus sulcatus, Park. %. Gault, Brit. .............. 419 
| Mytilide. 
4, Mytilus smaragdinus, Chemn. {. India..... 303 op Noi . 420 
bp» Modiola tulipa, Lam. 2. Brit... .50..%.2.ee a+ eee 421 
6. pelacica, Forbes: 3. 8. Atlantic .2.° 5° sceeeeeee 422 
7. lithophaga, 1. 4. Medit: [50.42 oe eee 422 
SwOrenelia aiseors, |, ~ rib 53 <2 c-n0 wa seek 6 eee eee 422 
9. Dreissena polymorpha, Pallas. %. Brit.........cssscceees- 422 - 
Arcade. 
10: Arca eranosa, 2: Australia... 2. ic. cee @. oe eee . 424 
it, —— pexata; Say. 4. 8, Carolina ..... -22te eee 424 
12: ——-( Bysso-area) Now, Vi. 2. “Medit. . 1... «7... a eee 424 
13. ————— zebra, Sw.. 3 Australia, ,.:=5.,..9s0eeee -, 424 
14. Cuculleea concamerata, Martini. 4. India...............- 425 
15. Macrodon Hirsonensis, D’Arch. sp. 3. Bath Oolite, Brit... 424 
16.*Pectunculus pectiniformis, Lam. 2. India..............0. 425 
17.* Limopsis aurita, Broce. sp. Crag; Sutfolk.0 3%... hehe ee 496 
18. Nucula Cobboldiz, Sby. 4. Crag, Norwich.............. 426 
19.*Nuculina miliaris, Desh. 4. Pocene; Paris 54. 2 s.ee eee 427 
o0.* Leda caudata, Donov: Brit,.....2.<...> «seuss ceie eee 427 
21.*—-( Yoldia) myalis, Couthouy .%. Crag, Norwich ........ 428 
22.*Solenella Norrisii, G. Sby. 3. Valparaiso................ 429 
23. ornata, G. Sby. sp. 3. Miocene, Patagonia...... 429 
Trigoniade. 
24,* Trigonia costata, Park. 2... 'Qolite; Brit: 41... 2.01 eee eee 430 
25. 
Myophoria decussata, Mist. sp. Trias, Tyrol ............ 431 
. Verticordia cardiiformis, Wood. 3. Crag, Suffolk ........ 472 
