THE GEOLOGICAL SURVEY OF SCOTLAND NEAR GULLANE. 107 



1877. Elonichthys striolatus, R. H. Traquair, ibid., p. 553, and Ganoid Fishes Brit. Carb. Form. (Pal. 



Soc), p. 57, pi. vii. figs. 4-15. 

 1880. Elonichthys tenuiseratus, R. H. Traquair, Proc. Boy. Phys. Soc. Edinb., p. 119. 

 1880. Elonichthys Dunsii, R. H. Traquair, ibid., p. 126. 



1891. Elonichthys Robisoni, A. S. Woodward, Cat. Foss. Fishes Brit. Mus., pt. ii. p. 495. 

 1891. Elonichthys Bucldandi, A. S. Woodward, ibid., p. 497. 

 1901. Elonichthys Bobisoni, R. H. Traquair, Gan. Fishes Brit. Carb. Form., pp. 62-70, — including as 



variations, striolotus, Bucklandi, intermedins, nemopterus, tenui striatus, and Dunsii. 



A considerable number of more or less fragmentary specimens are referable to this 

 species, so common in the estuarine beds of the Lower Carboniferous series in Scotland. 

 Among these, the nearest approach to a complete fish is represented in PI. I. fig. 1. 

 This example appears to be referable to the variety nemopterus (see my Pal. Soc. 

 monograph, 1901, p. 68), characterised by its delicately marked scales and slender 

 fin-rays with distant articulations, but most of the others approach rather more the type 

 of intermedins (op. at., p. 67). But the varieties of E. Robisoni all seem to pass 

 insensibly into each other, as is natural in so common a species. 



Elonichthys striatus, Agassiz, sp. 



1835. Amblypterus striatus, Agassiz, Poiss. Foss., vol. ii. pt. i. p. iii., pi. iv.b figs. 3-6. 

 1857. Bhabdolepis striatus, Troschel, Verb, natnrh. Verein. preuss., Rheinl. und Westfal., p. 16. 

 1877. Gosmoptychius striatus, R. H. Traquair, Qu. Jour. Geol. Soc, vol. xxxiii. p. 553 ; and Gan. 

 Fishes Brit. Carb Form. (Pal. Soc), p. 43, pi. ii. fig. 7, pi. iii. figs. 1-8. 



1890. Elonichthys striatus, R. H. Traquair, Proc. Boy. Soc. Edinh., vol. xvii. pp. 390, 396. 



1891. Elonichthys striatus, A. S. Woodward, Cat. Foss. Fishes Brit. Mtis., pt. ii. p. 491. 



This is perhaps the commonest species of fish in this locality, the Survey collection 

 containing a great many specimens, some of which are nearly entire. Most of 

 these are from bed a ; but its presence in bed b has been proved not only by Mr 

 Macconochie, but also by Messrs Bowie and W. T. Gordon. 



Elonichthys striatulus, Traquair. PL I. figs. 2-5. 

 1904. Elonichthys striatidus, R. H. Traquair, in Summ. Prog. Geol. Survey for 1903, p. 121. 



The specimen represented in PL I. fig. 2, the only one which has hitherto occurred 

 at Gullane, measures a little over 2 inches as it stands, but its original length may be 

 estimated at 2^,* as the tip of the caudal extremity and also of the snout are both 

 cut off by the edges of the stone. The length of the head would probably be to 

 the total as one in four ; its roof-bones are ornamented by comparatively coarse and 

 distant ridges, with some tubercles on the parietal region ; the external sculpture seen 

 on the facial bones and on the elements of the shoulder girdle consists also of ridges of 



* In the diagnosis of this species given in the Summary of Progress a strange misprint occurs, " 21 " inches 

 being given as the estimated length of the specimen instead of " 2j." 



