1498 Bulletin 47, United States National Museum. 



rosy instead of orange ; fins marked with more or less blackish, the anal 

 with some yellowish; a conspicuous black triangular blotch in the axil of 

 the pectoral. Length 7 inches. Monterey Bay, California; locally abun- 

 dant in rock pools ; not seen elsewhere ; feeds upon Ulva. (aurora, sunrise. ) 



Abeona aurora, JORDAN & GILBERT, Proc.U. S.Nat. Mus. 1880, 299, Monterey Bay (Coll. 

 Jordan & Gilbert) , JORDAN & GILBERT, Synopsis, 588, 1883. 



600. CYMATOGASTER, Gibbons. 



Cymatogaster,* GIBBONS, Daily Placer Times and Transcript, May 18, 1854 (aggregatus 



and minimus) . 

 Micrometrus, GIBBONS, Proc. CaL Ac. Sci., in Daily Placer Times and Transcript, May 



30, 1854 (aggregatus and minimus). 

 Metrogaster (AGASSIZ MS.) ALEXANDER AGASSIZ, Proc. Boston Soc. Nat. Hist., vm, 1861, 



128, and (aggregatus). 

 Sema, JORDAN, Bull. U. S. Geol. Surv., IV, 399, 1878 (signifer; larvce with very high ver- 



tical fins and closely compressed body). 



Body elliptical, oblong, compressed ; head conic ; mouth small, oblique, 

 the lower jaw slightly shorter; lips thin, the lower without frenum; teeth 

 small, conical, rather numerous, in 1 series. Gill rakers moderate, slender; 

 scales comparatively large; dorsal spines rather high, some of the middle 

 ones highest, the posterior not so high as the soft rays; the soft dorsal 

 shortened; anal moderate, with weak spines; caudal forked; pharyngeals 

 normal, the teeth mostly conic, the central and posterior teeth molar; 

 vertebrae 14-|-20=34. Carnivorous species of small size, abounding on 

 sandy or muddy shores, (nvjua, foetus; yatfriip, belly.) 



1882. CYMATOGASTER AGGREGATUS, Gibbons. 



(SPARADA; VIVIPAROUS PERCH.) 



Head 3; depth 2f. D. IX, 20; A. Ill, 23; scales 3-38-11. Body elon- 

 gate-oval, compressed, heaviest at the front of the dorsal ; caudal pedun- 

 cle short and slender; head short; teeth very small, conical, -^ ; dorsal 

 spines high and rather feeble, rising rapidly to the fifth, thence slowly 

 descending, the last lower than the soft rays; pectorals reaching past tips 

 of ventrals, which do not reach nearly to vent ; third anal spine the long- 

 est, shorter than soft rays; ventral spine situated about 2 scales bebind 

 the vertical from the base of the pectoral. Cheeks with 3 rows of scales^ 

 Gill rakers short and slender, about 18 below angle. Silvery, back dusky ; 

 middle of sides anteriorly with the scales each with a cluster of dark 

 points, these forming a series of longitudinal stripes, which extend to 

 opposite the base of the anal; these stripes are interrupted b,y 3 vertical 

 light-yellow bars, on which are no black specks in the adult, t Adult 



* The name Cymatogaster was first applied by Dr. Gibbons to 2 species, aggregatus 

 and minimus. Shortly afterwards Dr. Gibbons transferred the name Cymatogaster to 

 Holconotus, giving a new name Micrometrus to aggregatus and minimus. Still later, 

 Girard gave the name Abeona to minimus and Agassiz gave the name Metrogaster to 

 aggregatus. In 1862 Gill restored the name Cymatogaster to aggregatus, an arrangement 

 which should probably stand. 



tFor an excellent detailed account of the development of this species see Eigenmann, 

 Bull. U. S. Fish Comin. for 1892, 412-478. 



