336 EXPLANATION OF NEW PLATES. 



EIG. 



540. Eingicula, Desh. A fossil species, front view. 



541. Back view of the same. 



542. Turbo nicobaricus. Chrysostoma, Sw. 



543. Trocbus Iris. Elencbus, Humph. 



544. Purpura vexilla. Gen. Vexilla, Sw. 



545. Halia. Acbatina priamus, Auct. 



546. Purpura crispata. Polytropa, Sw. 



547. Pseudoliva plumbea. G-astridium, Sow. 



548. Fusus loBgevus. Clavalitbes, Sw. 



549. bulbiformis. Leiostoma, Sw. 



550. Pyrella, Sw. Turbinella Spirillus, Auct. 



551. Pleurotoma lineata. Tomella, Sw. 



552. Pyrula melongena. Gen. Myristica, Sw. 



553. Murex vitulinus, Gen. Vitulina, Sw. 



554. Typhis Sowerbii. 



555. A brown variety of the same. 



556. Typhis Cumingii. 



557. Yoluta Yexillum. Harpula, Sw. 



558. Mitra monodonta. Mitreola, Sw. 

 559. bicolor. Mitrella, Sw. 



560. Columbella nitidella. Gen. Nitidella, Sw. 



561. Oliva volutella. Gen. Lamprodoma, Sw. 



562. — — maura. 



563. Cyprsea Globulus. 



564. pulchella, fossil. Gen. Cyprsedia, Sw. 



565. Csecum trachea. 



566. Triomphaha globosa. 



567. Turtonia minuta. ^ 



568. Poronia rubra. | 



569. Kellia orbicularis. ^see Kelladie. 



570. Montacuta videntata. | 



571. Pythina Deshayesiana.J 



572. Syndosmya alba. 



573. Cochlodesma prsetenuis. 



574. Myodora striata. 



