. Bulletin - United States National Museum. Science. 278 NATIONAL MUSEUM BULLETIN 2 02 Vol. 2 Genus LIMNICHTHYS Waite Limnichthys Waite, Rec. Australian Mus., vol. 5, pt. 3, p. 178, pi. 23, fig. 4, 1904 (type species, Limnichthys fasciatus Waite). The species of Limnichthys are separated by the following key (See also table 107): la. Dorsal rays 25 or 26, anal 27 to 29 L. fasciatus Waite \h. Dorsal rays 19 to 22, anal 23 to 25 L. donaldsoni, new species LIMNICHTHYS DONALDSONI, new species Figure 107 Holotype.—USNM 140906, Bikini Atoll, lagoon reef halfway betv/een Bikini and Amen Islands,
. Bulletin - United States National Museum. Science. 278 NATIONAL MUSEUM BULLETIN 2 02 Vol. 2 Genus LIMNICHTHYS Waite Limnichthys Waite, Rec. Australian Mus., vol. 5, pt. 3, p. 178, pi. 23, fig. 4, 1904 (type species, Limnichthys fasciatus Waite). The species of Limnichthys are separated by the following key (See also table 107): la. Dorsal rays 25 or 26, anal 27 to 29 L. fasciatus Waite \h. Dorsal rays 19 to 22, anal 23 to 25 L. donaldsoni, new species LIMNICHTHYS DONALDSONI, new species Figure 107 Holotype.—USNM 140906, Bikini Atoll, lagoon reef halfway betv/een Bikini and Amen Islands, July 21, 1947, S-46-442, Brock, Hiatt, and Schultz, standard length mm. Paratypes.—USNM 140909, Eniwetok Atoll, Rujoru Island la- goon reef, June 2, S-46-195, Schultz, 1 specimen, 18 mm.; USNM 140908, EniAvetok Atoll, Aaraanbiru Island, ocean reef, June 3, S-46-198, Schultz, 1 specimen, 20 mm.; USNM 140907, Rongerik. Figure 107.—Limnichthys donaldsoni, new species, holotype, USNM 140906. Drawn by Dorothea B. Schultz. Atoll, Bock Island, ocean reef, June 27, S-46-237, Schultz and Herald, 2 specimens, 16 to 17 mm.; USNM 164422, Oahu, off Y\^ai- kiki reef, Dec. 31, 1952, Gosline, Randall and Brock, 1 specimen, 21 mm.; USNM 164423, Oahu, off Yv'aikiki, June 4, 1952, Gosline and Brock, 1 specimen, 21 mm. Description.—The following counts were made on the holotype and paratypes. Dorsal rays 22, 21, 19, 21, 21; anal rays 24, 24, 23, 24, 25; pectoral 11-11, 11-11, 11-11, 11, 11; pelvic rays always I, 5; pores in lateral line 36, 36, 37, 35, 37; predorsal scales 17, 17, 17, 18; 3 scales between lateral line and dorsal origin and 3 below to anal origin. Precision measurements were made on the holotype and one para- type and these data, recorded below, are expressed in thousandths of the standard length. Standard length and Length of head 315 and 337; greatest depth of body 103 and 117; diameter of orbit 34 and 43; length of snout 69 and 61; tip of snout to
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