. Bulletin of the British Museum (Natural History). . Fig. I. The holotype of Radiicephalus elongatus (above) 760 mm. (after Os6rio, 1917) compared with the 1966 " Discovery " neotype (below) 692 mm. The course of the postcleithra in the holotype is held to be shown by the curved shadow bending towards the ventral profile ( with the neotype, Fig. 2). THE NEOTYPE OF RADIICEPHALUS ELONGATUS 0S6RI0 In accordance with the International Code of Zoological Nomenclature 74-75 (1964), adopted by the XV International Congress of Zoology, a neotype may be designated only if the h
. Bulletin of the British Museum (Natural History). . Fig. I. The holotype of Radiicephalus elongatus (above) 760 mm. (after Os6rio, 1917) compared with the 1966 " Discovery " neotype (below) 692 mm. The course of the postcleithra in the holotype is held to be shown by the curved shadow bending towards the ventral profile ( with the neotype, Fig. 2). THE NEOTYPE OF RADIICEPHALUS ELONGATUS 0S6RI0 In accordance with the International Code of Zoological Nomenclature 74-75 (1964), adopted by the XV International Congress of Zoology, a neotype may be designated only if the holotype is lost or destroyed, and no lectotypes or syntypes exist. This is the case with R. elongatus. The present paper is offered in completion of revisionary work (Palmer, 1961) on the dealfishes of the Mediterranean and Northeast Atlantic, and the proposition of a neotype is considered necessary in 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)
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