468 REFERENCE TO PLATES. 



20, 21. Littorina littoralis, Forbes (= obtusata, Linn). 



Conch. Icon. f. 34, 252 



22. Littorina fabalis, Turton (= obtusata, Var.). Ibid. f. 



90b. . 253 



23. Littornia ?estuarii, Jeffreys (= obtusata, Var.). Brit. 



Conch. V, t. 101, f. 8, . . . . . . .253 



24. Littorina umbilicata, d'Orb. Voy. Amer. Merid. t. 76, 



f. 3, 253 



25. 26. Littorina albicans, Metcalfe. Conch. Icon., f. 44a, b, 253 



27. Littorina tennis, Phil. Ibid, f. 35, . . . .254 



28. Littorina Ardouiniana, Heude. Hist. Nat. Emp. Chin., 



Pt. 3, t. 25, f 8, : . . 253 



29. Littorina caliginosa. Old. Moll. Wilkes' Exped., f 240, 254 



30. Littorina venusta, Pfeffer. Nat. Hist. Mus. Hamburg, t. 



1, f. 9, 1886, 254 



31. Littorina granum, Pffr. Ibid, t. 1, f. 10, ... 254 



32. Littorina pygmrea, Pffr. Ibid, t. 1, f. 11, . . .254 



33. Littorina umbilicata, Pffr. Ibid, t. 1, f. 12, . . . 254 



34. Littorina pumilio. Smith. Trans. Roy. Soc. clxviii, t. 9, 



f. 7,_ 267 



35. Littorina Hisseyana, Tenison Woods. Specimen, . . 255 



36. Littorina Paludinella, Reeve. Conch. Icon, f. 84, . . 255 



37. Littorina setosa. Smith. Trans. Roy. Soc. clxviii, t. 9, f. 6, 255 



38. Littorina setosa. Smith. Nat. Hist. Mus. Hamburg, t. 1, 



f. 7, 1886, 255 



39-41. Littorina pellita. Marts. Ibid, t. 1, f. 6, . . . 255 



42. Littorina Turneri, Dall. Proc. Nat. Mus., t. 3, f. 3, 1886, 255 



43. Cremnoconchus carinatus, Layard. Conch. Indica, t. 



146, £ 10, . .256 



44. Cremnoconchus conicus^, Blanf. Ibid, t. 146, f. 9, . . 256 



45. Cremnoconchus Fairbanki, Blanf (= conicus). Ibid, t. 



146, £ 7, . . . . . . . . .256 



46. Cremnoconchus canaliculatns, Blanf. (= conicus). Jour. 



Bengal, xxxix, t. 3, £ 4, . . . . . . 256 



47. Cremnoconchus Syhadreusis, Blanf. Conch. Ind., t. 146, 



£ 6, 256 



Plate 47. 



48. Tectarius pagodus, Linn. Conch. Icon., £ 4, . . . 256 

 49-51. Tectarius'bullatus, Martyn. Ibid, £ 1, . . . 257 



52. Tectarius tectum-persicum, Linn. Ibid, £ 3, . . . 257 



53. Tectarius coronaria, Lam. Ibid, f. 2, . . . . 257 



54. Tectarius armata, Issel. Issel. Mar Rosso, t. 2, £ 7, . 257 



55. Tectarius tectiformis, Watson. Voy. Challenger, xv, t. 



43, £ 1, 258 



56. 57, Tectarius Montrouzieri, Fischer. Kiister, Conch. 



Cab., t. 14, £ 14, 15, 259 



58. Tectarius spinulosa, Phil. (= bullatus). Conch. Icon., £ 5, 257 



