. Bulletin of the British Museum (Natural History), Geology. . FiG. 29. Right frontals in dorsal view of a, Argentina sialis Gilbert, Recent, Pacific, , 72 mm. ; b, Hypomesiis olidus (PaUas), Recent, Tartar Strait, , 93 mm. ; c, Coregonus lavaretus L., same specimen as Fig. 28. Scale i mm. bladder, etc., the skeleton is still cellular (personal observation). This suggests that all argentinoids retain cellular bone and are therefore more primitive than the almost acellular Gaudryella and Humbertia. The osmeroids and stomiatoids are acellular, like Gaudryella and Humbert
. Bulletin of the British Museum (Natural History), Geology. . FiG. 29. Right frontals in dorsal view of a, Argentina sialis Gilbert, Recent, Pacific, , 72 mm. ; b, Hypomesiis olidus (PaUas), Recent, Tartar Strait, , 93 mm. ; c, Coregonus lavaretus L., same specimen as Fig. 28. Scale i mm. bladder, etc., the skeleton is still cellular (personal observation). This suggests that all argentinoids retain cellular bone and are therefore more primitive than the almost acellular Gaudryella and Humbertia. The osmeroids and stomiatoids are acellular, like Gaudryella and Humbertia, but are primitively well toothed forms, with endopterygoid, basihyal and basibranchial teeth. In this they are more primitive than Gaudryella and Humbertia, while they are more advanced in having slender posterior infraorbitals, the neural arches and parapophyses fused with the centra (except in Plecoglossus, Weitzman 1967b : 531), no orbitosphenoid, etc. The galaxioids have recently been revised by McDowall (1969) and shown to comprise two groups, one containing the galaxiids and aplochitonids, the other the. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original British Museum (Natural History). London : BM(NH)
Size: 1012px × 2470px
Photo credit: © Book Worm / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookauthorbritishmuseumnaturalhistory, bookcentury1900, bookcoll
