Catalogue of the fossil fishes in the British Museum (Natural History) .. . dorso-lateral twice as long as broad, and the forwardly-directed process somewhat spatulate; posterior dorso-lateral rela-tively very small, triangular in form, with the hinder apex deflectedinwards. Form. Sf Log. Lower Old Red Sandstone : Caithness and Orkney. P. 5539. Plaster cast of the head and trunk, showing the boundariesand arrangement of the dorsal plates, and some of thedisplaced jaw-bones, &c.: Thurso. The original specimenis preserved in the Museum of Science and Art, Edinburgh,and is described and figured b
Catalogue of the fossil fishes in the British Museum (Natural History) .. . dorso-lateral twice as long as broad, and the forwardly-directed process somewhat spatulate; posterior dorso-lateral rela-tively very small, triangular in form, with the hinder apex deflectedinwards. Form. Sf Log. Lower Old Red Sandstone : Caithness and Orkney. P. 5539. Plaster cast of the head and trunk, showing the boundariesand arrangement of the dorsal plates, and some of thedisplaced jaw-bones, &c.: Thurso. The original specimenis preserved in the Museum of Science and Art, Edinburgh,and is described and figured by Traquair. loc. cit. figure is reproduced in the accompanying woodcut(fig. 46), and explained by the lettering. Presented by the Lords of the Committeeof Council on Education, 1888. COCCOSTEIDJS. 307 P. 5540. Plaster cast of a similar but more imperfect specimen, withdisplaced median dorsal plate; Thurso. The original isalso preserved in the Museum of Science and Art, Edin-burgh. Presented by the Lords of the Committeeof Council on Education, 1888. Pig. Homosteus milleri, Traq.—Outline of cranial and dorsal shield, by E. H. Tra-quair, one-sixth nat. size, a, b, c, undetermined bones; , anteriordorso-lateral; , ethmoid; c, central; , external occipital; m., mar-ginal ; , median dorsal; , median occipital; o., orbit; ,posterior dorso-lateral; , preorbital; , pineal; , postorbital. P. 698. Series of seven plaster casts of specimens in the HughMiller Collection, Edinburgh Museum, five being figuredby Miller, op. cit. figs. 27, 28, 35, 39 ; Orkney. Egerton Coll, P. 699. Imperfect median dorsal plate measuring, in its broken con-dition, 0-28 across; Orkney. Egerton Coll. P. 3227. Portion of dermal plate, showing stellate tubercular orna-ment ; Orkney. EnnisJdllen Coll. x2 308 AETHRODIRA. Genus HETEROSTEUS, Asmuss. [Das vollkommenste Hautskelet der bisher bekannten Thierreihe(Inaug. Dissert. Dorpat, 1856), p. 7 {Heterostius).
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Keywords: ., bookauthorbritishmuseumnaturalh, bookcentury1800, bookdecade1880
