Dr. Traquair — Neic Fish-Remains from near Edinburgh. 491 



Herschelli, that it is specifically distinct from either of these spinose 

 species of Homnlonoti, and also from H. elongatiis, as already stated. 

 I have, therefore, much pleasure in dedicating this new Devonian 

 Homalonotus to the discoverer as H. Champernownei, sp. nov., from 

 the Lincombe and Warberry Grits, New Cut, Torquay : which are 

 probably the equivalent of the Hangman Grits and of the Homalo- 

 notus red flag-stone of the Eifel. 



V. — Notice of New Fish Eemains from the Blackband Ikon- 

 stone OF Borough Lee, near Edinburgh. No. II. ^ 

 By Dr. E. H. Tbaquair, F.R.S., F.G.S. 

 OrypMoIepis, gen. nov. 



CEANIAL structure typically paleeoniscoid, with wide gape and 

 oblique suspensorium ; teeth conical, sharp, incurved, of 

 different sizes, larger alternating with smaller. Fins palaeoniscoid, 

 fulcrated ; dorsal nearly opposite the interval between the ventrals 

 and the anal ; caudal powerfully heterocercal, deeply cleft, inequilo- 

 bate. Body-scales thin, rounded, but seldom symmetrically so, 

 deeply imbricating ; their external free or ganoid arese distinctly 

 marked off, and sculptured with closely set ridges which ai-e appa- 

 rently tubular internally. Scales of the caudal body-prolongation 

 of the usual palseoniscoid contour. 



CrypMolepis striatiis, Traq. 

 CoelacantJms striatus, Traq. Geol. Mag. Jan. 1881. 



A few weeks ago, I was somewhat startled by the discovery that 

 the scales, to which in the Geological Magazine for January of 

 this year, I gave the name of Coslacantlius striatus, belonged, not to 

 a Coelacanthus at all, but to a fish, in other respects, of typically 

 Paleeoniscid structure I The error was no doubt a serious one, but 

 also one, which I think any one who looks at the detached scales, — 

 thin, rounded, deeply imbricating, and delicately striated on their 

 free surfaces, as they are, — will readily be disposed to excuse. As 

 it is, our knowledge of the British Palaeozoic fauna is enriched by 

 the addition of a remarkably aberrant form of FalcBoniscidce, and one 

 which shows not only how dangerous it may be to found conclusions 

 on fragmentary remains, but also how small may be the systematic 

 value of the mere external shapes of the scales of Ganoid Fishes. 



The first specimen which opened my eyes to the true nature of 

 the fish in question, was a fragment showing, attached to a mass of 

 the scales of the supposed Coelacanthus, a ventral and anal fin of 

 distinctly Palaeoniscid structure, along with a few rays of the caudal. 

 Anteriorly is found a mandible, whose form, sculpture, and dentition 

 at once throws light upon certain detached mandibles, which I had 

 previously obtained, and supposed to belong to a new species of 

 FjIonicMhys. The next specimen was more perfect, and showed the 

 entire figure of the fish, with head and tail, and all the fins, save 

 the pectoral, in a tolerably good state of preservation. 



1 For Part I. see Geol. Mag. January, 1881, pp. 34-37. 



