178 



CALIFORNIA ACADtilY OF SCIENCES 



319. Evermannia zosterura {Jonlm >(• Gilbert). 



Seven specimens were seciired from the title-pools of the Paiiiima reef, where 

 it was associated with the much more numerous A', pii nanuniM!^. The species had 

 heen detected Iieretoforo only at Ma/.allan, Mex. In the Panama specimens, the 

 normal fin-formula is 1). \\. ll-|-l; A. lo-|-l. One specimen only vailcs from this 

 in having the anal rays H + l. In seven :i<l(lilional siicciincns from Mazatlan no 

 variation exists. 



A', zoshrina agrees with K. jmnamensis in having a rather long (lexihle 

 appen(hige totiie shoulder-girdle, and in the presence of embedded scales; though both 

 cliaractei-s are denied in all published descriptions. The scales are very few in number, 

 and can bo detected only by the examination of detached portions of the skin under 

 high magnification. There are thus no characters remaining to separate Evermannia 

 from I/i/pmts, save that the latter has five instead of four dorsal spines, with none 

 of them filamentous or produced; the scales are also regularly arranged and are not 

 concealed. These characters seem doubtfully sufficient for generic division, but the 

 groups may be provisionally retained pending further examination of allied species. 

 CU-relandia is .somewhat less closely related. It is said to have no fleshy appendages 

 to the shoulder-girdle, but in C. iox, which we have re-examined, there is an evident 

 low sharp crest along the lower portion of the girdle, rising at about two points to 

 form inconspicuous papillte. This condition is quite difTcrent from that obtaining in 

 Kvermannia and //ijp7iii>i, where a single long flexible finger-like process arises from 

 the same locality in all of the species. 



Measurements in Hundredths of Length withoiit Caudal. 



Length of body in mm 



Length of head 



Length of snout 



Length of maxillary 



Diameter of orbit 



Depth (if body at ventral base 



Distance from snout to spinous dorsal 



Base of second dorsal 



Distance from snout to anal 



Base of anal 



Length of pectoral fin 



Length of ventral fin 



Length of caudal fin 



