SOUTH AFIIR'AN MAIUNE MOLLUSCA. 219 



all. They vary considerably in size^ and yet the smallest 

 appears to be quite as adult as the lai'gest. Doubtless in 

 their young- condition the valves would not be united ven- 

 trally. The oblique suture-like line which bisects the valves 

 recalls the crack or fissure which is generally seen in speci- 

 mens of the genus Ana tin a. 



EXPLANATION OF PF.ATES VJI and VIII, 



Illustrating Mr. Edgar A. Smith's paper " On South African 

 Marine Mollusca, with Descriptions of New Species." 



PLATE VII. 



Fig. 1. — Leucotina natalensis n. sp. 



Fig. 2. — Mangilia elizabetliae u. sp. 



Fig. 3.— Clathurella westcotti n. sp. 



Fig. 4. — Daphuella? ininuscula n. sp. 



Figs. 5, 5 o — Marginella ingloria n. sp. 



Fig. 6. — Columbella shepstonensis n. sp. 



Fig. 7. — Coralliopliila fragosa n. sp. 



Fig. 8. — ^Trifora buriiuiji n. sp. 



Figs. 9, 9 a. — Cerithiopsis ? peilei n. sp. 



Figs. 10, 10 «. — Lippistes helicoides (GmeL). 



Fig. 11. — Tiivritella natalensis ii. sp. 



Fig. 12. — Rissoa farquliari n. sp. 



Fig. 13. — Rissoa adjaceiis n. sp. 



Figs. 14, 14 a. — Epitonium macvoniplialus n. sp. 



Fig. 15. — Epitonium shepstonense n. sp. 



Fig. 16. — Eulinia leptostoma n. sp. 



Fig. 17. — Calliostoma crossleyas n. sp. 



Figs. 18-18 b. — Cyclostrema pelliicida n. sp. 



PLATE VIII. 

 Figs. 1, 1 a. — Haliotis (PadoUus) qneketti n. sp. 

 Figs. 2, 2 a. — Scissnrella jucunda n. sp. 



