ZOOLOaT OF FERICANDO KOEONHA. 



503 



when vievv^ed from above. It was very plentiful in the lake on 

 the south-west corner of the island. 



List of Species obtained at Fernando Noronha hy the 

 ' Challenger ' Expedition. 



Acmsea, sp. 



Littorina nodulosa, d'Orb. 

 Nerita ascensionis, Gmelin. 

 Cerithiopsis, sp. 

 Columbella mercatoria, Linn. 

 Cylichna noron3'eiisis, Watson. 

 Fossarus ambiguus (Linn.). 

 Marginella sagittata, Hinds. 

 Mitmlaria unciuata (Rve.). 

 Nassa capillaris, Watson, 

 Oliva fulgida, Reeve. 



pulchella(?), Duclos. 



Phasianella, sp. 

 Rissoa, sp. 



Scalaria hellenica, Forbes. 

 Siphonodentalium tetraschistuni, 



Watson. 

 Solarium, sp. 



Stomatella nigra, Quoy i^ G. 

 Utriculus canaliculatus (Say). 

 Xenophora corrugata (Reeve). 

 Chiton Boogii, Haddon. 

 Pectunculus pectinatus [Gmelin). 

 Ervilia subcancellata, Smith. 

 Cardiiun medium, Linne. 

 Lucina pecten, Lamarck. 

 Mytilus exustus, JRve. 

 Area imbricata, Brug. 

 Pecten noronhensis, Smith. 



For the above species, see the Reports on the Grasteropoda, 

 Polyplacophora and Lamellibranchiata, by R. B. Watson, A. C. 

 Haddon, and E. A. Smith respectively. 



EXPLANATION OF PLATE XXX. 



Fig. 1. Triton Eidleyi, sp. n. 



2. Littorina trochiformis, yar. 

 3, 3 a. Acmcea noronhensis, sp. n. 

 4-4 b. Siphonaria fida, var. 



5. Chiton (Ischnochifon) carrihworum. 

 5 a. Ditto. Central valve, magnified. 

 6, 6 a. Area (Acar) Adamsii. 

 1-1 c. Helix {Ophiof/yra'i) quinqiiclirata 

 broken away to show the teeth. 



8. Bulimiis ( Tomigcrus) Eamagei, sp. n. 



9. „ {Bulimulus) Eidleyi, sp. n. 



10. Vupa soUtaria, sp. u. 10 a. Aperture, enlarged 

 11-11 b. Planorbis noronhensis, sp. n. 



7 (-•■ Aperture, enlarged ; lip 



