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ADDENDA ET CORRIGENDA. 
Page 2, etc. The locality Wardie, near Edinburgh, is often quoted as 
Newhaven or New Haven in the earlier memoirs. 
7, etc. Though /efzs is a feminine Greek word, the universal 
custom of regarding it as masculine when employed in 
scientific names is followed in this work. 
g. The fragment of dentition of Aefodatis figured in R. Damon, 
Geol. Weymouth, ed. 2, 1880, Suppl., pl. xii, f. 1, is evi- 
dently an Eocene fossil ; it is now in the British Museum. 
14. The undescribed type of Asteracanthus stutchburyi is in the 
Bristol Museum ; it is of doubtful age. 
17. Leryx microcephalus and 2. radians are first named im 
Agassiz, Poiss. Foss., Feuill., 1835, p. 55. 
40. Since the earlier sheets were printed the negotiations for the 
purchase of the E. W. Binney Collection by the Man- 
chester Museum have failed. The types of Hofplopy gus 
binneyt and Strepsodus saurotdes are therefore not yet 
preserved in a public collection. 
49. ddd CTENACANTHUS dubius, J. W. Davis, Trans. 
Roy. Dublin Soc. [2] vol. i (1883), p. 340, pl. xliv, f. 7. 
Loc. L. Carb. Limest.; Armagh. [Spine; Brit. Mus.] 
65, line 6, de/e Passage Beds. 
67. The type of Dzttodus divergens is now in the British Museum. 
74. Figures of Elonichihys caudalis, egertont, oblongus, and 
semistriatus are also given by J. Ward, Trans. N. Staffs. 
Inst. Mining Engin., vol. x, 1889, pl. iv, f. 1, 2, pl. v, f. 4-6. 
80, line 4, for J. W. Salter read F. M‘Coy. 
82. The type of Ganacrodus hastula is now in the British Museum. 
Iol. Mr. Edward Wilson is unable to recognise the type of 
Hybodus leviusculus in the Bristol Museum, and considers 
that the spine named /. /eftodus is probably a Rheetic fossil. 
130, line 28, for J. W. Salter read F. M‘Coy. 
132, line 11, for 1843 vead 1837. 
146. ddd PHLYCTZENIUS, R. H. Traquair, Geol. Mag. 
[3] vol. vii, 1890, p. 21, with the single British species, 
P. anglicus, to be described and figured, zé¢d., February 
1890. Loc. L. Old Red Sandst. ; Herefordshire. [Imperfect 
shield ; Edinburgh Mus.] 
