i8 



SMITHSONIAN MISCELLANEOUS COLLECTIONS 



VOL. 52 



cheek-plate evidently belongs to this suborbital series. A trace of 

 an occipital sheathing bone, as seen in BIops. 



Scales on body small, cycloid, those along base of dorsal enlarged, 

 forming a distinct sheath; lateral line well defined, slightly curved 

 dov^nward, anteriorly about 15 rows of scales between dorsal and 

 lateral line ; the tubes straight and simple, scales extending over mid- 

 dle part of caudal fin nearly to its posterior edge. Dorsal rays about 

 12 (all the fins more or less broken) ; ventrals inserted under last 

 rays of dorsal (or a little farther backward) ; caudal deeply forked, 

 the vertebras of the caudal peduncle strong. 



Each scale of upper anterior and middle part of body with a dis- 

 tinct black spot of pigment, these spots forming distinct lines along 



Fig. 10. — Head of Elops saiirus Lin- 

 naeus. Honolulu. 



Fig. II. — Scales of 

 the lateral line 

 of Calamopleurus 

 cyUndricus. Show- 

 ing pigment. 



the rows of scales. No fossil fish known to the writers shows its 

 original coloration so clearly as this. Of this specimen we have 

 attempted to give a restoration. The pigment stripes doubtless ex- 

 tended the whole length of the body. 



Besides this specimen, we have another smaller one with its coun- 

 terpart (Xo. 14, Rocha Collection). This shows the lateral scales 

 very perfectly,! .Jut the lateral line is obliterated, being crushed against 

 the vertebral column. Specimen No. 14 also shows black pigment 

 underneath some of the scales. Specimen No. 23, Rocha Collection, 

 is a crushed head, showing the opercular bones. 



Another nodule (No. 20, Rocha Collection) shows the side of the 

 head and the anterior part of the body ; the lateral line is traceable, 

 though obscured by the telescoping of the scales, which are abnor- 

 mally crowded together. 



Another fine specimen (No. 21, Rocha Collection) has the anterior 

 part of the head crushed, but the anterior part of the body is very 

 well shown. The bones of the head arc as in the larger specimen. 

 The distance from gill opening to dorsal is a little less than greatest 

 depth of body and considerably less than length of head. There 

 are 25 scales along the lateral line before dorsal and about 30 



