File:Atherion elymus.jpg

English: Title: Bulletin - United States National Museum

Identifier: bulletinunit20211953unit Year: 1877 (1870s) Authors: United States National Museum; Smithsonian Institution; United States. Dept. of the Interior Subjects: Science Publisher: Washington : Smithsonian Institution Press, [etc. ]; for sale by the Supt. of Docs. , U. S. Govt Print. Off. Contributing Library: Smithsonian Libraries Digitizing Sponsor: Biodiversity Heritage Library

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Text Appearing Before Image: FAMILY ATHERINIDAE—SCHULTZ 293 of gill opening to midbase of caudal fin 44, from first dorsal origin to midventral line 12; median predorsal scales 18; scales in zigzag row around least depth of caudal peduncle 12. Additional counts are re- corded in table 26. Precision measurements were made on tlie holotype and one para- type and these data are recorded in thousandths of the standard length in table 27. Depth 6.8 to 7.0; head 3.8 to 4.1; snout to first dorsal origin 1.8 to 1.9, to center of anus 1.7 to 1.8, to anal origin 1.6; all in standard length. Snout 3.8 to 4.2; eye 2.8 to 3.0; tip of snout to rear of maxil- lary 3.7 to 4.0; least depth of caudal peduncle 3.6 to 3.7; postorbital

Text Appearing After Image: Figure 45.—Holotype of Atherion elymus freyi, new subspecies (U.S.N.M. No. 134083) from Guam. (Drawing by Aime M. Awl.) length of head 2.3 to 2.4; distance between dorsal origins 1.5; length of longest ray of pectoral fin 1.4 to 1.5; interorbital space 3.0 to 3.1; all in length of head. Least depth of caudal peduncle in its length 3.0. Premaxillary with front margin concave; teeth minute, premaxil- lary, dentary, snout, and head generally covered by rows of denticles that appear similar to shagreen; vomer with a few teeth, palatines toothless; air bladder and body cavity ending bluntly in front of anal origin, and not extending into the haemal arches; anterior bony edge of preopercle truncate, without a concavity, posterior bony edge of preopercle with a concave notch; gill rakers moderately long and slender, a little shorter than diameter of pupil; maxillary short, not reaching to a vertical line through front of orbit, upper and lower jaws restricted at sides by a membrane between them and attached far for- ward near front of dentary; scales on opercle and in front of base of pectoral greatly enlarged; anus a little closer to anal origin than to tips of pelvics, notably in advance of anal origin; anus slightly be- hind a vertical line through first dorsal origin or under it; anal fin origin far in advance of second dorsal origin, about under tips of depressed dorsal spines; posterior edges of scales smooth, not crenulate; ascending premaxillary process very short and broad based, premaxil- lary only a little protractile. Color in alcohol.—Each scale pocket above lateral band with a few black dots, or black spots, lateral band widest above anal fin base,

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