lO 



5. Neritma (Neritaea) variegata Lesson. 



Lesson. Voy. de la Coquille, p. 378. 



V. Martens. Martini-Chemn. Conch. Cab. Ed. II, Neritina, p. 98, PI. 10, fig. 11 — 17. 



Weber, Zool. Ergebn. Band IV. Siiss- u. Brackw. Moll. p. 78. 



Stat. 131. Beo, Karakelang-islands ; shore, i Spec. 



Stat. 180. North coast of Pulu Kelang; small river. I Spec. 



*var. strigillata Lamarck. 



Lamarck. An. s. vert. Ed. Desh. Vol. VIII, p. 574. 



Reeve. Conch. Icon. Vol. IX, Neritina, fig. 31 [turrita). 



V. Martens. Martini-Chemn. Conch. Cab. Ed. II, Neritina, p. 105, PL 11, fig. iS, 19. 



"•■'Java. 14 Spec. 

 The specimen of Stat. 1 3 1 has no red spot on the pillar lip. 



6. Neritina (Neritaea) ftcrrita Chemnitz, var. Ctimingiana Recluz. 



Recluz. Revue Zool. 1842, p. ^6. 



V. Martens. Martini-Chemn. Conch. Cab. Ed. II, Neritina, p. 105, PL 11, fig. 20, 21. 



Stat. 131. Beo, Karakelang-islands; shore, i Spec. 



*7. Neritina (Neritaea) semiconica Lamarck. 



Lamarck. An. s. vert. Ed. I, Vol. VI, p. 187. 



MOUSSON. Land- u. Siissw. Moll. v. Java. p. 80, PL 12, fig. 11. 



V. Martens. Martini-Chemn. Conch. Cab. Ed. II, Neritina, p. 105, PL ii, fig. 22, 23. 



■■■'Java. 9 Spec. 



The specimens are large, the largest, which is decollated, measures still 33 Mill., if not 

 decollated, it would have reached 40 Mill, or more. 



I have mentioned N. semiconica as a distinct species, because Troschel has found 

 differences between the radulae of this form and N. ttirrita. 



8. Neritina (Neritaea) comimmis Quoy & Gaimard. 



Quov & Gaimard. Voy. de I'Astrolabe. ZooL Vol. Ill, p. 195, PL 65, fig. 12 — 14. 

 V. Martens. Martini-Chemn. Conch. Cab. Ed. II, Neritina, p. 113, PL 11, fig. i — 9. 

 Weber, Zool. Ergebn. Band IV. Siiss- u. Brackw. Moll. p. 79. 



Stat. 131. Beo, Karakelang-islands; shore, i Spec. 



Stat. 200. Rivulet near Bara-bay, North coast of Buru-island. i Spec. 



Both specimens are of a simple character, yellowish with waved black lines. 



9. Neritijia (Neritaea) sulculosa v. Martens. 



V. Martens. Martini-Chemn. Conch. Cab. Ed. II, Neritina, p. 69, PL 8, fig. 23 — 26 [spirialis), 

 p. 278 [sulculosa). 



Stat. 204. Between islands of Wowoni and Buton. 75 — 94 M. sand with dead shells. 2 Spec. 



10 



