350 ADDENDA AND CORRIGENDA. 



Spirorbis minutus, Flem. Edinh. Encycl. vii. 68. Johnstoti, Ann 4* Ma^. 



Nat. Hist. xvi. 452. 

 Heterodisca miiiuta, Fletn. Edinh. Phil. Journ. xii. 247. 

 {a) Falmouth (on stones), W. P. Codes. 

 (6) Scarborough (separate specimens). 

 {c) Milton (on a stone), Mus. Montagu. 



In his " Index to the British Annelides," in the Annals and Maga- 

 zine of Natural History, vol. xvi., 1845, Dr. Johnston has given 

 a list of a good many other species which have been described by 

 various naturalists. As specimens do not exist in the National Col- 

 lection, we shall merely give here the species as mentioned in the work 

 above quoted. 



Sp. 8. Spirorbis carinatus. 



Serpula carinata, Mont. Test. Brit. 502. 

 Spirorbis carinatus, Flem. Edinh. Encycl. vii. 68. 



Sp. 9. Spirorbis Montagui. 



Serpula, n. sp., Mont. Test. Brit. 502. 



Spirorbis Montagui, Flem. Edinh. Phil. Jouym. xii. 245. 



Sp. 10. Spirorbis incurvatus. 



Serpula incurvata, Turt. Gmel. iv. 609. 



Spirorbis incurvatus, Flem. Edinh. Phil. Journl xii. 245. 



Sp. 11. Spirorbis pervius. 



Vermiculum pervium, Mo7it. Test. Brit. 518. 

 Spirorbis pervius, Flem. Edinh. Phil. Journ. xii. 245. 



Sp. 12. Spirorbis retortus. 



Serpula retorta, Turt. Gmel. iv. 609. 



Spirorbis retortus, Flem. Edinb. Phil. Journ. xii. 245. 



Sp. 13. Spirorbis annulns. 



Spirorbis annulus, Brown, Illust pi. 1. f. 44. 



Sp. 14. Spirorbis heterocliticus. 



Spirorbis heterocliticus. Brown, Illust. pi. 1. f. 57. 



Sp. 15. Spirorbis striatulus. 



Spirorbis striatulus, Broivn, lUust. pi. 1. f. 59. 



Sp. 16. Spirorbis conicus. 



Spirorbis conicus, Flem. Edinh. Fkcycl. vii. 68. pi. 205. f. 3. 

 Heterodisca conica, Flem. Edinh. Phil. Jmirn. xii. 247. 



Sp. 17. Spirorbis reversus. 



Serpula reversa, Mont. Test. Brit. 508. 

 Spirorbis reversus, Flem. Edinh. Encycl. vii. 69. 

 Heterodisca reversa, Flem. Edinh. Phil. Journ. xii. 248. 



Page 279, Maea mirabilis, at end of description add (a) Scotland, 

 Dr. Greville. 



Append, page 304, for Plate II. C. read Plate I. 



