56 t'AI.IKdUNlA ACADl.MY Ol' SCIKNCKS 



point above axil of pectorals to front of dorsal. Rohind dorsal a single scries of spots 

 occupies llif median line of liaek. 



io8. Fistularia corneta sp. nov. 



PI.ATK X, FlliS. 18 ANll I8«. 



Five specimens, eacdi 02 cm. long, were seen in llie I'linnnin niarket; two of 

 tliese were preserved. Besides these, we have in the collection of Stantord Tni- 

 versitv several small specimens from Panama. (•(ilicM-ted by tiie "Ali)atross," and 

 several small ones from Ma/.atlan. 



I Ii-;k1 ,^ in K-ii,i;tli. I >c|illi of IkkIv. a slioit distanrc in Inml ii( dorsal I'm, ! the il<]>tli al (i((i|iul. 

 At insertion of ventral (ins tlu- uiiltli nl tlir lindy is luicc its (l(|illi. Tlu- cxtri-mc l.iii^tli <>{ the nihil 

 is contained 9 times in the leiit^tli of the heatl: maxillary 13'^ to I3js'; interi>rl)ital width (bone) 

 3} to 4 in postorbital \K\n of head. Lenj^th of jiectoial, from base of upper lay to tips of longest 

 rays, 6| to 7 in liead; ventials i 1. 



The maxillary is rather short, and has a concave jiosterior border. The iipi)er lateral ridpe of 

 snout is serrated on its posterior three-fifths. On the anterior half of the serrated portion, the serra- 

 tions become abruptly finer and more crowded. The two superior ridj^es of the snout are rather 

 wide a|xtrt posteriorly, and very gradually approach each other anteriorly. They are scarcely 

 divergent or even parallel in the large sijecimens, but in the small ones they diverge slightly on the 

 anterior half of the snout. The distance between them is everywhere hhk h greater than their distance 

 from the ujjper lateral ridge. The area between the upjier latiral ridge and the superior ridges 

 is generally smooth, sometimes somewhat uneven, but never roughly scul])tured. The interorbital 

 area is flat and roughly sculptured on each side, and its middle third is ilepressed to form a snioolh 

 channel. 



The pectoral reaches about one-third of the distance between the base of its upper ra)' and the 

 insertion of the ventrals. The dorsal and anal tins are exactly opposite and equal in length; their base 

 4 times their distance from the middle caudal rays. The skin is everywhere smooth; the lateral line is 

 not armed with bony plates. 



In the five specimens seen at Panama (fresh) the back was a uniform dark brown. In the 

 small specimens from Panama and Mazatlan there is usually a lighter stripe, with ill-defined edges, on 

 each side of the back, a short distance above the lateral line, and following its course to the base of the 

 caudal fin. 



This species differs from F. depressa in having a shorter maxillary, a larger 

 eye (in specimens of the same size), and jiarticnhirly in having a much \vid(!r inter- 

 orbital space. There is no trace of bine markings in our material. 



We have several specimens of F. petimba from Formosa and Japan, wiiich 

 agree well witii the description given by Dr. Giinthcr (Shore-fishes, Challenger, 

 p. 08) under the name F. serrata. They differ from /■'. corneta in having the superior 

 ridges of the snout very close together and parallel for nearly their whole length. 

 (They are spoken of as ridges, though they appear, in this species especially, as a 

 single, raised, flat area posteriorly, the sides of which arc left in relief as ridges 

 anteriorly.) The distance between them is everywhere much less than their distance 

 from the upper lateral ridge. The area between the upper lateral ridge and the 

 superior ridges is roughly sculptured with radiating lines, as shown in the illustration 

 accompanying the description cited above (Plate XXXII). The interorbital area is 



