i6o smith: small collection of shells from china. 



8. Melania eaneellata, Benson. 

 Hah. — Tungting hu = Tong Ting Lake, Hunan. 



9. Melania gredleri, Bottger. 

 Hah. — Chin Chow, T'aoyiian, Hunan. 



Most of the specimens are very short and broad, much shorter 

 than the shells figured by Heude {Mem. sur la Chine, vol. i, pi. xli, 

 figs. 30, 32). An averaged size example is 27 millim. in length and 

 12 in breadth. 



10. Unio leai, Gray. 



Hah. — China. Exact locality not stated. 



11. Unio shanghaiensis, Lea. 



Hah. — Lu She. 



12. Unio, sp. 

 Hah. — Chien Yang. 

 A single valve only. 



13. Corbicula, sp. 

 Hah.—Vu Shi. 



14—16. Corbicula, spp. 



Hah. — Pu Shih, Yiian Chow, Chin She, Tsing She, Chien Yang, 

 T'aoyiian, Hunan. 



A series of specimens from these localities apparently belong to 

 three or four species, but to attempt to distinguish them would 

 necessitate long and special study of the genus. 



17. Modiola fortunei, Dunker. 

 Hah. — Hunan. 

 A single specimen of a richer browner tint than the type. {Conch. 



Icon., vol. X, fig. 75). 



18. Mytilus, sp. 

 Hah. — Hunan. 



A single specimen of a very slender species, perhaps belonging to 

 M. martensi referred to by Neumayr {Neu. Jahrh. Mineral, etc., 1883, 

 vol. ii, p. 22). It is 20 millim. long, 8 broad and 9 in diameter. In 

 form and colour it somewhat resembles Reeve's figure of M. minimus 

 {Conch. Icon., vol. x, pi. xi, fig. 56), but it is rather more slender and 

 has a sharper umbonal ridge. The beaks are acute, but not quite in 

 contact at the tips. The valves are thin, finely concentrically striated, 

 iridescent within, edentulous, but with a slight shelf at the apex which 

 in consequence is hollow as it were within. The ventral side is 

 concave with a narrow byssal opening. Dreissensia sicinlioei of H. 

 Adams belongs to the same group as the present species, having a 

 similar hinge and the iridescent nacreous inner surface. 



