. Breviora. 8 BREVIORA No. 491. Figure 2. Transforming larva of Manducus greyae, 24 mm SL (MCZ 82463). Drawn by L. Meszoly. tion, the esophagus and stomach are black, and it is the only one of these specimens in which the intestine has withdrawn inside the contours of the body. The second 24-mm specimen (MCZ 82463) is still white. The smallest specimen that shows the ac- cessory lateral photophores is 30 mm (MCZ 82464). By 46 mm the species is largely adult in body form, pigmentation, and pho- tophore development. Ozawa and Oda (1986:82) claimed that in M. greyae the mid- lateral photophores d
. Breviora. 8 BREVIORA No. 491. Figure 2. Transforming larva of Manducus greyae, 24 mm SL (MCZ 82463). Drawn by L. Meszoly. tion, the esophagus and stomach are black, and it is the only one of these specimens in which the intestine has withdrawn inside the contours of the body. The second 24-mm specimen (MCZ 82463) is still white. The smallest specimen that shows the ac- cessory lateral photophores is 30 mm (MCZ 82464). By 46 mm the species is largely adult in body form, pigmentation, and pho- tophore development. Ozawa and Oda (1986:82) claimed that in M. greyae the mid- lateral photophores develop before the ventral photophores. This is not the case in the specimens examined by us. The ventral photophores, especially the IC series, are well developed and con- spicuous before the LLP series begins to appear. In this, M. greyae resembles all the other species in Manducus and Diplophos that we have examined. Manducus-Diplophos Relationships Opinions and evidence about the status of Diplophos Giinther, 1873 and Manducus Goode and Bean, 1896 have differed among authors and over the years. Goode and Bean (1896:514) estab- lished Manducus to contain Gonostoma maderense Johnson, 1890. While they recognized that this species was not a true Gonostoma, they did not comment on any resemblance to Diplophos taenia Giinther. Grey (1960:76) reduced Manducus to a subgenus of Diplophos because the distinction between the two nominal genera (, differences in certain proportional measurements and num- bers of fin rays, photophores, and vertebrae) seemed trivial com- pared to differences among other gonostomatid genera. Johnson (1970:442) went further and concluded that even subgeneric rank was unwarranted. His new species, Diplophos greyae, seemed to. 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 Harvard Uni
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