IO 



5. Neritina (Neritaea) varicgata 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. Süss- u. Brackw. Moll. p. 78. 



Stat. 131. Beo, Karakelang-islands; shore. 1 Spec. 



Stat. 180. North coast of Pulu Kelang; small river. 1 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, PI. n, fig. 18, 19. 



*Java. 14 Spec. 

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



6. Neritina (Neritaea) turrita Chemnitz, var. Cumingiana Recluz. 



RECLUZ. Revue Zool. 1842, p. j6. 



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



Stat. 131. Beo, Karakelang-islands ; shore. 1 Spec. 



*7. Neritina (Neritaea) semiconica Lamarck. 



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



Mousson. Land- u. Süssw. Moll. v. Java. p. 80, PI. 12, fig. 11. 



V. Martens. Martini-Chemn. Conch. Cab. Ed. II, Neritina, p. 105, PI. 11, 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. turrita. 



8. Neritina (Neritaea) communis Quoy & Gaimard. 



QuOY & Gaimard. Voy. de FAstrolabe. Zool. Vol. III, p. 195, PI. 65, fig. 12 — 14. 

 V. MARTENS. Martini-Chemn. Conch. Cab. Ed. II, Neritina, p. 113, PI. 11, fig. 1 — 9. 

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



Stat. 131. Beo, Karakelang-islands; shore. 1 Spec. 



Stat. 200. Rivulet near Bara-bay, North coast of Buru-island. 1 Spec. 



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



9. Neritina (Neritaea) sulculosa v. Martens. 



v. Martens. Martini-Chemn. Conch. Cab. Ed. II, Neritina, p. 69, PI. 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. 



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