1907.] NATURAL SCIENCES OF PIIILADIOM'IIIA. 425 



ATHERINIDiE. 

 Atherina presbyteroides Kichardson. 



Head 4g; depth about 6J:?; D. IX-I, i, 10, i; A. I, i, 12, i; P. i, 10; 

 scales from gill-opcniiig to base of caudal (guessed according to pockets) 

 at 45?; about 9? scales in a vertical series up from origin of ventral; 

 width of head II in its length; pectoral 1^; snout 3| in head measured 

 from tip of upper jaw; eye 2|; maxillary 2^; interorbital space 3|. 

 Belly apparently not swollen. Snout short, obtuse as seen from above. 

 ICye large, high, a trifle anterior. Mandible protruding and rami 

 elevated a little inside mouth. Maxillary reaching a trifle beyond 

 front margin of eye, without teeth. Teeth in narrow bands in jaws 

 and a short narrow band across vomer. Interorbital space flat. 

 Ridge of preopercle nearly forming a right angle. Scales large, cycloid, 

 narrowly exposed in longitudinal series and loosely adherent. Head 

 and base of caudal scaly, otherwise fins naked. Spinous dorsal 

 inserted nearer tip of snout than base of caudal or a short space behind 

 origin of ventral, and spines all rather slender, flexible and second 

 longest. Rayed dorsal inserted nearer origin of ventral than base of 

 caudal or a little behind origin of anal, and first rays longest. Raj'ed 

 anal similar to last. Pectoral reaches about 1^ to origin of spinous 

 dorsal. Ventral inserted a little nearer origin of pectoral than that of 

 anal. Vent about opposite base of last dorsal spine. Color in alcohol 

 faded brownish generally. A silvery band about 2 or 3 scales distant 

 from dorsal ridge of back from shoulder to base of caudal, rather 

 narrow after rayed dorsal and anal and bounded by a narrow leaden 

 line along its upper margin. Sides of head and U'is silvery. Fins 

 l)lain pale brown. Length about 2 inches (caudal damaged). 



This differs a little from the original account in the possession of an 

 additional anal ray and the depth of the l^ody being a little less than 

 the length of the head. 



MA.CRORHAMPHOSID^iE.1 

 Macrorhamphosus scolopax elevatus (Wuitt). 



A small example agrees with young Italian examples of M. scolopax. 

 Depth of body 2.V in space between posterior margin of eye and base of 

 caudal, and dorsal spine about 25 in latter. Eye about 3 in snout. 



LIMICULIXA subsen. nov. 

 Type Centriscus humerosus Richardson. 

 Differs from subgenus Macrorhamphosus Lacepede in the more 



' Fistularia pelimbu (Lacepede) from I'iji. 



