yO sTU'Rin.T':. 



times in the total length. The maxillary harhels do not extend to 

 the end of the operele. Trunk and hinder half of the tail hlack. 



Java. 

 ii. One of the typical specimens. From Dr. P. v. IMeeker's Collection. 



0. Acrochoi-donichthyB ischnosoma. 

 7«rt>X-«-, Piw7r. Si'Ivr. p. 2;)2, and Atl. Ichth. Silur. p. 70. tab. 84. fig. 4. 

 D. 1/3. A. 10. l\ 1/7. 



The n\edian groove o!\ the npper siirfaee of the head tern\inates at 

 ft considerable distance t\\^\\ the base of the occipital process ; occi- 

 pital process elongate-ovate. The groatest width of the bi^l)' is oon- 

 tainled five times and tvro-thinls in the total length. The maxillary 

 barbels extend to the operculum. Entii-ely brownish. 



Java. 



rt. 1?ype of the species. From Dr. P. v. lUeeker's OoUcctitm. 



38. AKYSIS. 



Akysia, lifech Pro<Jr. mo: p. 2;U. 



Pftrabixgw,?, Bh-fJc. XrfM. 2}/d.iohr. Ds'rt-Jt. 1863, p. 100. 



Adijwse ftn of mixlemte length ; a short dorsal fin \^ith (M\e spine 

 and fiN"e soft mys ; anal fin .short. Barbels eight. The npper jaw 

 is somewhat longer than the lower; teeth villi form, palate edentn- 

 I'ous. Head coN^wd with sot\; skin above ; skin tnWivnlar ; eyes 

 very small, below the skin ; a lateral line. Oandal emarginate w 

 forked ; pectorals horizontal ; ventrals with six rays, (i ill-opening 

 of moderate width, extending upwards to the exti'emity of the opei-cle, 

 the gill -membrane reaching across the isthmus, slightly emarginate 

 behind. 



Java. 



1 . Akysis variegatus. 



PimelodUs Vftriegatws, Bhfk. f'erh. B(rt. (r<-n. xxi., l^'fur. S(rtai\ p. o'V 

 Akysis vftriegatus, ©M-. P/w?>\ Si7m\ p. 23oy and Atl Ichth. iS^fer. 

 p. 05. tab. '83. %. 1. 



«. 6. D. 1/5. A. 9. P. 1/5-0. 



The length of the head is one-fi>urth, or a little less than one- 

 foui-th, of the ttital (without caudal) ; the eyes aro situated betoi^ 

 the middle of the length of the head ; the maxillary barbels extend 

 t6 the root of the pei^tx>ral', the ftv* portion of the tail is twice a^ 

 long as hig-h. Dorsal spine of moderate strength, a little shorttM 

 than the head; adipose fin longer than the dorsal, and equal in 

 le!\gth to its distance ftvm the dorsal ; caudal forked. Yellow, with 

 four bi-oad, irregtilar brown cross-bands ; fins and barbels variegated 

 With bnnvn. 



Java. 



^1. Otteof th'C t.5-pic«i specimens. Fnnn Dr. P. v. Bleeker's Oolleetion 



