10 LIBRI IN INGLESE ASSOCIATI CON «SUBOPERCULUM»
Scopri l'uso di
suboperculum nella seguente selezione bibliografica. Libri associati con
suboperculum e piccoli estratti per contestualizzare il loro uso nella letteratura.
1
History of the Coelacanth Fishes
Those coelacanth taxa showing a suboperculum longer than deep also show a
quadrilateral suboperculum (Miguashaia, Poly- osteorhynchus - Cloutier, 1991a,
Appendix 1). Another coextensive combination is the presence of a triangular ...
2
A history of British fishes
In the Salmon, the posterior free edge of the gill-cover, as shown in the left-hand
figure, forms part of a circle; the lower margin of the suboperculum is a line
directed obliquely upwards and backwards: the line of the union of the
suboperculum ...
3
Palaeogeography and Palaeobiogeography: Biodiversity in ...
Character 7: Opercular region 0,.operculum.more.oblique.than.suboperculum,.
oval-shaped,.pointed.and. large;.1,.intermediate;.2,.operculum.and.
suboperculum.of.about.equal. width. Character 8: Accessory opercular bones (
antoperculum) 0 ...
Paul Upchurch, Alistair J. McGowan, Claire S.C. Slater, 2011
4
Early vertebrates and related problems of evolutionary biology
Suboperculum: The suboperculum is a single dermal bone located ventral to the
operculum. Based on a topographical criterion, the suboperculum is homologous
with the last branchiostegal ray found in primitive Palaeonisci formes (e. g. ...
Miman Zhang, Yu-hai Liu, Guo-rui Zhang, 1991
5
The Annals and Magazine of Natural History: Zoology, Botany, ...
Five irregularly tiled vertical rows of larger scales cover the bony operculum and
suboperculum, increasing in size as they recede from the preoperculum. The gill-
cover ends in a projecting rounded thin membranous lobe, beneath which there ...
6
Prize Essay on the Fishes of the District of the Firth of Forth
Mr Yarrell places much dependence, as a character, on the formation of the
suboperculum, and its line of union with the operculum compared to the axis of
the body of the fish. In some examples I have recognised this character, but in
others I ...
7
Fauna Boreali-americana; Or, The Zoology of the Northern ...
The operculum and suboperculum together form an equilateral spherical triangle.
The former ends in a pretty strong flat spine, which is the extremity of a thin,
though strong ridge, that strengthens the bone internally, but is even with the
surface ...
Sir John Richardson, William Swainson, William Kirby, 1836
8
The Last of the Arctic Voyages: Being a Narrative of the ...
... consists of a horizontal narrow piece or rib that tapers into a spine, whose point
does not attain the membranous edge of the gill-cover, and of a slender
descending limb, which joins a corresponding process of the suboperculum
splintwise.
9
Fauna boreali-Americana; or the zoology of the northern ...
The very thick, nearly semicylindrical suboperculum extends from the cheek to
the middle of the arm that supports the pectoral fin, rendering that part of the fish
much wider than the body. The thin, flat, nearly horizontal operculum, fills part of ...
Mr Yarrell places much dependence, as a character, on the formation of the
suboperculum, and its line of union with the operculum compared to the axis of
the body of the fish. In some examples I have recognised this character, but in
others I ...
Wernerian Natural History Society, Edinburgh, 1838
