. Annals of the South African Museum = Annale van die Suid-Afrikaanse Museum. Natural history. THE SOUTH AFRICAN MUSEUM'S MEIRING NAUDE CRUISES 73. Fig. 7. Diaphus nielseni (SM 148). Scale 10 mm. last anal ray or slightly in front of this vertical. Pectoral fin not reaching ventral base; ventral fin extending almost to origin of anal fin. Dn heart-shaped and directed anterolateral^, slightly larger than general body photophore; Vn continuous with Dn, expanded posteroventrad to nasal rosette and extending posteriorly to about middle of anterior rim of iris. PLO about 1,5 times nearer to upper b
. Annals of the South African Museum = Annale van die Suid-Afrikaanse Museum. Natural history. THE SOUTH AFRICAN MUSEUM'S MEIRING NAUDE CRUISES 73. Fig. 7. Diaphus nielseni (SM 148). Scale 10 mm. last anal ray or slightly in front of this vertical. Pectoral fin not reaching ventral base; ventral fin extending almost to origin of anal fin. Dn heart-shaped and directed anterolateral^, slightly larger than general body photophore; Vn continuous with Dn, expanded posteroventrad to nasal rosette and extending posteriorly to about middle of anterior rim of iris. PLO about 1,5 times nearer to upper base of pectoral fin than to lateral line. VLO slightly nearer to lateral line than to base of ventral fin. SAO series slightly angulate, with SAOi above level of VO2 and just posterior to VO5, with SAO2 about above anus and behind line joining centres of SAOi and SAO3, and with SAO3 in advance of vertical through origin of anal fin and in contact with lateral line. AOa1 abruptly and highly elevated to about level of SAO2; AOa2-AOa3 in- terspace enlarged; last AOa elevated; AOp behind end of base of anal fin, evenly spaced and level. Pol slighly in advance of origin of adipose fin and in contact with lateral line. Pre series widely spaced, with Prc3-Prc4 interspace sub- equal to AOp-Prci interspace; Prc4 about one photophore diameter below level of lateral line. A large, luminous scale at PLO. Maximum length 40 mm; sexually mature from about 32 mm. Distribution High-oceanic, mesopelagic. Indian Ocean: Equatorial waters west of Suma- tra; off east coast of Africa and in Mozambique Channel between 15°S and 21°S. Pacific: south-eastern Asian seas, northward to southern Japan. Remarks The Meiring Naude specimens represent the first record of the species in the southern African region, where there is a range extension to about 30°S. The three specimens are all Please note that these images are extracted from scanned page images that may have been digitally enhanced for
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Keywords: ., bookcentury1800, bookdecade1890, booksubjectnaturalhistory, booky
