PARALICHTHINiE 119 



42 to 48 in lateral line. Dorsal 62-66 ; commencing above posterior nostril of blind 

 side and just in front of eye. Anal 48-52 ; tip of first interhimal spine projecting. 

 Pectoral of ocular side with 10 rays, length i J to if m that of head. Caudal rounded 

 or double-truncate. Brownish, with irregular darker spots and markings. 



Fig. 75. — Tarphops oUgolepls. B..M. (N'.H.) 1905 .5.6.237. X2. 



Type. — Leiden Museum. 

 Distribution. — Formosa ; Japan. 

 Specimens Examined : 



(i (55-60 mm.). Inland Sea of Japan. Smith. 



I (67 mm.). Senzaki, Nagato Prov., Japan. Tokyo Imp. Univ. 



Genus 8. XYSTREURYS. 



Xystrcurys, Jordan and Gilbert, 1881, Proc. U.S. Xat. Mus., iii, (iSSo), p. 34 [Xy^treurys liolepis, 



Jordan and Gilbert]. 

 Verecundum, Jordan, 1S90, Proc. U.S. Nat. .Mus., .xiii, p. 330 [Verecundum rasile, Jordan]. 



Body ovate or rather deep, compressed. Eyes normally on the left side,^ separated 

 by a narrow ridge. Olfactory laminaa arranged transversely to or radiating from a 

 fairly lengthy central rachis. Mouth of moderate size, the length of the maxillary 

 more than ^ that of head ; jaws about equally developed on both sides, but dentition 

 more developed on the blind side ; teeth rather small, blunt, conical, without distinct 

 canines anteriorly, uniserial in both jaws : vomer toothless. Gill-rakers short or of 

 moderate length ; lower pharyngeals each with 3 or 4 rows of strong, bluntly pointed 

 teeth. Dorsal fin commencing well behind posterior nostril of blind side and above 

 the eye ; the rays simple or bifid at their tips, scaled on both sides. Tip of first 

 interhaemal spine not projecting in front of anal fin. Pectoral fins unequal, that of 

 ocular side prolonged, much longer than that of Wind side ; middle rays branched. 

 Pelvic fins short-based, subequal and subsymmetrical. Scales small, all cycloid : 

 some minute supplementary scales present, particularly in region of pectoral arch. 

 Lateral line equally developed on both sides of body, with a distinct curve above the 

 pectoral fin ; no distinct supratemporal branch. Vent nearly on median line, just in 

 front of anal fin. Vertebra 37 (12 + 25). 



Two species from the coasts of California and Brazil. 



' .V. liolepis is indifferently sinistral or dextral. 



