of the Genus Liocassis. 549 



2. Head longer than broad ; pectoral spine shorter than head. 



a. Depth of body 5^ to 7 in the length ; caudal peduncle 2^ as 



long as deep. 

 Bony area of upper surface of head with 



straight anterior edge; occipital pro- 

 cess longer than broud ; pelvics reach- [1894. 



ing anal ; fins iuiniaculate 13. iiiornatus, Bouleng., 



Bony area of upper surface of head with 



eniarginate anterior edge ; occipital 



process broader than long; pelvics not 



nearly reaching anal ; dorsal and anal 



with dark bars 14. vaillanti, sp. n.* 



b. Depth of body 4^ in the length ; caudal peduncle If as long 



as deep 1-5. rugosus, sp. n, 



B. Supraclavicular plate produced backwards into a pointed process. 



Supraclavicular process small, not ex- 

 tending so far back as clavicular [Beaufort, 1912. 

 process 16. liacanthxis, Weber & 



Supraclavicular process strong, extending [1890. 



as far back as clavicular process .... 17. moeschii, Bouleng., 



Species from China and Japan. 



I. Snout strongly projecting beyond mouth ; caudal deeply forked ; 



occipital process rugose ; dorsal spine long, serrated. [1864, 



18. lonr/irostris, Gunih.., 



II. Snout obliquely truncated, projecting beyond mouth ; caudal forked, 



the middle rays about h as long as the longest ; occipital process 

 covered by skin. 



A. Band of teeth on palate continuous. 



Dorsal spine serrated, about f length of [1864. 



head; pectoral spine § length of head. 19. crassilabris, GUnth., 

 Dorsal spine smooth or slightly serrated, ^ 



to f length of head ; pectoral spine 



J length of head 20. crassirostris, sp. n. 



B. Band of teeth on palate divided in middle. 



21. naso, Garm., 1912. 



III. Mouth subterminal. 



A. Caudal fin moderately emarginate, the middle rays about | as 



long as the longest 22. emarginatw, sp. n. 



B. Caudal fin truncate or slightly emarginate. 

 Occipital process slender, subcutaneous; 



length of head 4 to 4 5 in length of 

 fish ; caudal peduncle If to If aa long 



as deep 23. truncatus, sp. n. 



Occipital process broad, rugose ; length of 

 head 5 in length of fish ; caudal pe- 

 duncle 2\ as long as deep 24. Usniatus, Giinth,, 1873. 



» L. moeschii (non Bouleng.), Vaillant, Notes Leyden Mus.xxiV no 1. 

 1902, p. 61, figs. 8 & 9. ' 



