140 FI.ATFISHHS (lIKTKKOSOiMA lA) 



1 1 . N'ertebrs ^i to 30 ; eyes separated by a low ridge or concave space : head 

 closely compressed species of the Atlantic and tropical Pacific — 



CiTHARICHTHVS]. 



A. Maxillary 2j to 3i in head ; interorbital space similar in both sexes. ' 

 I. Eye 3 to 4i in head. 



(7. Heail 3 to 3j in length. 



<i. Interorbital width less than ! eye ; 2 rostral spines ; dorsal 01, 



anal 73 ........ 3. ilmnceros. 



.•I Interorbital width aliout \ eye : no rostral spines ; dorsal 7.S, 



anal ()_• . . . . . . . . b. platophrys. 



h- Head 3^ to 4J in length. 



,1. Depth 2} to 25 in length ; maxillary 3J (3J) in head 7. arclifrons. 

 f1. Depth 2 to 2j in length ; maxillary 2| in head. 



* Dorsal 80-82, anal 59-02 ; 41 to 44 scales in lateral line 



8. niactops. 

 ** Dorsal 08, anal 52 ; 52 to 53 scales in lateral line . g. uhlert 



2 Eye 4i to nearly 8 in head. 



CI. Depth a little less than twice in length ; dorsal (68) 75, anal (48) 



55 ; 50 scales in lateral line . . . . .10. areiiaceiis. 



b- Depth 2 to 2j in length : dorsal 77-87, anal 58-65 ; 40 to 48 scales 

 in lateral line. 

 <i 43 to 47 scales in lateral line ; 10 to 13 gill-rakers on lower part 

 of anterior arch ; maxillary to below hinder part or posterior 

 edge of eye, 2j to 2i in head . head 35 to 3I in length 



II, spilvplt-yus. 

 1^. 46 to 48 scales in lateral line ; 14 to 17 gill-rakers on lower part 

 of anterior arch ; maxillary to below middle or posterior i 

 of eye, 2J to 2| in head ; head 35 to 3I in length 



12. stanipflit. 

 y 40 to 43 scales in lateral line ; 12 to 14 gill-rakers on lower part 

 of anterior arch ; maxillary to below middle or posterior 

 part of eye, 2? to 2f in head ; head 3J to 35- in length 13. gilberti. 



B. Maxillary scarcely more than twice in head ; interorbital space broader 



in male ; male with prominent rostral spines ; eye 2;V to 3 in head 



14. cornutus. 



This genus forms a very heterogeneous group, but I am unable to find valid 

 reasons for its subdivision. C . aniifyons has a greater number of olfactory laminje in 

 the nasal organ, with a longer median rachis, than any other species examined by me, 

 but, as I have seen no examples of dmoceros, platophrys and uhlevi, I have hesitated to 

 remove it on this account. C. cornutus shows marked secondary sexual differences, 

 but otherwise appears to be a typical Ciiharichthys. 



Parr (11131, Bull, Bingham Ocean. Coll., iv (i), p. 2) unites l:li,ipiis with Cill:- 

 arichthys, but, since the species of the former genus appear to form a natural group, 

 characterised by the smaller mouth and feeble dentition, with the teeth nearly 

 confined to the blind side of the jaws, it is more convenient to retain the two genera, at 

 any rate for the present. 



1 CI rH.XKK HTHVS SORDIUIS (Girard). 



Soft E'lounder.] 



I\dti(hth\s s.n;lulu<., Girard, l,S5h. I'lur. A.ad, \at, Sci. Phllati.. vii, (i«.i^), p. 14: ; (.irard, 1S5.S, 



U.S. I'aiilii K.K. Survfv, x. Ilslio, p. 155. 

 Orthopsetta i„i,hii,i. (,ill, i.Sii;. Proc. .\r,id. Xat. Sci. Philad., p. 3311. 

 .\Utopow:ps ,n,,pn,, r.ill, iSi,|, Pr...-. .\,,id. Nat. Sn. Philad., p. loS. 



