279 
of Edinburgh, Session 1876 - 77 . 
margins finely denticulated, ornamented with delicate ridges, which 
are mostly parallel with the anterior and lower margins, some 
above being parallel with the upper one, and which in the hinder 
part of the fish, tend, on the posterior part of the scale, to become re- 
placed by punctures ; dorsal and anal fins very high in front sharply 
acuminated ; the rays of all the fins delicate, with rather distant 
articulations (in the principal rays at least twice as long as broad). 
By Agassiz the rays of the dorsal fin are described as being 
“ tous bifurques a plusieures reprises jusque vers leur milieu.” It 
seems to me, however, that the dichotomisation of the longer rays, 
as is usual in this genus, does not commence till towards their ter- 
minations. He also described the surface of the scales as being 
“ornee de petites rides saillantes, disposees a-peu-pres comme les 
lignes d’accroissement en losanges concentriques plus on moins 
regulieres et un peu obliques, de telle sorte que leurs angles aigus 
sont tournes vers les angles superieur-anterieur et inferieur-poste- 
rieur de chaque ecaille,” — a description which is hardly correct, 
as there are no striae parallel with the posterior margin of the scale. 
The scales of the type-specimen are, however, in very bad preser- 
vation, the exterior ganoine layer having everywhere disappeared, 
and their markings can only be made out from the impressions on the 
counterpart. Agassiz seems also to have been much struck by its re- 
semblance to the Amblypterus ( Rhabdolepis ) macropterus of Saarbriic- 
ken ; to me, however, although the bones of the head are very badly 
preserved, its affinities to the following species seem so plain and 
obvious, that I have no hesitation in referring it to the same genus. 
Geological Position and Locality. In ironstone nodules from the 
Lower Carboniferous shales of Wardie, near Edinburgh. 
Elonichtliys intermedins , sp. nov. Traquair. 
Amblypterus pundatus (pars) Agassiz “Poissons Fossiles,” vol. ii. pt. 2, p. 109. 
Atlas vol. ii. tab. 4c. figs. 3, 5, 6, 7, 8, but not fig. 4. 
Eliminating from the three figured specimens of “ Amblypterus 
pundatus ” A g., the one showing a head, and which in my last com- 
munication to the Society I have made the type of a new genus, 
Gonatodus, retaining the original specific name pundatus , the two 
remaining headless specimens seem undoubtedly to agree with each 
other, and also with a series of more or less perfect fishes in my 
