176 Annals of the Carnegie Museum. 



Genus Parasilurus Bleeker. 



1856. Glanis Agassiz, Proc. Amer. Acad., p. 333 (Name pre-occupied by Giants 



Gronow, 1854). (Type Glanis aristotelis Agassiz.) 

 1863. Parasilurus Bleeker, Nederl. Tydschr. Dierk., p. 114. (Type Silurus 



asotus Linnaeus.) 



Bod}^ elongate, the profile of the back almost horizontal. Head 

 depressed and covered with soft skin; eyes anterior and subcutaneous; 

 mouth broad, transverse; four barbels, two maxillary, which are very 

 long, two mental, which are short; teeth cardiform or villiform, in broad 

 bands in the jaw and on vomer; no teeth on palatines. Gill-opening 

 wide, not confluent with isthmus, and narrowly jointed together. 

 Dorsal small, without spine, and anterior; adipose fin absent; anal 

 more or less united with the caudal, very long; pectorals with spine; 

 ventral behind dorsal. Air-bladder not inclosed in bone. (Jordan & 

 Fowler.) 



Distribution: India; East Indies; Formosa; China; Corea; Amur 

 Province; Japan. 



4. Parasilurus asotus (Linnaeus). 

 Namadzu (Japan); Ryamhii (Formosa). 



1758. Silurus asotus Linn^us, Sj^st. Nat. Ed. X, p. 501; Asia.^BLOCH & Schnei- 

 der, Syst. Ichth., 1801, p. 375. — Basilewsky, Nouv. Mem. Soc. Nat. Mosc, 

 X, 1855, p. 240, PI. 3, Fig. 4; China. — Gunther, Cat. Fish., V, 1864, p. 33; 

 Japan; China. — Ann. Mus. St. Petersb., 1896, p. 11; Huihsien, China. — 

 ISHiKAWA, Prel. Cat., 1897, p. 23; Japan. — GDnther, Ann. Mag. Nat. 

 Hist. (7), I, 1898, p. 261; Newchang. — Popta, Z06I. Anz., XXXII, 1907, 

 p. 250; Kiautschau, China. 



1846. Silurus xanthosteus Richardson, Ichthyol. China, p. 281; Canton; Chusan. 

 — Voy. Sulph., Fishes, p, 133, PI. 56, Fig. 12-14. 



1846. Silurus japonicus Schlegel, Fauna Japonica, Poiss., p. 226, PI. CIV, Fig. 

 i; Higo; Satsuma; Nagasaki. — Bleeker, Verh. Batav. Genootsch., XXV, 

 1855. PP- 30 and 51. 



1846. Silurus sinensis Richardson, Ichthyol. China, p. 281; Chusan. 



1867. Silurus (Parasilurus) asotus Kner, Novara, Fisch, III, p. 303; Shanghai. 



1901. Parasilurus asotus Jordan & Snyder, Ann. Zool. Jap., Ill, p. 45; Yoko- 

 hama. — Abbott, Proc. U. S. Nat. Mus., XXIII, 1901, p. 83; Pei-ho, China. — 

 Jordan & Fowtler, Proc. U. S. Nat. Mus., XXVI, 1903, p. 903; Tokj-o; 

 Niigata; Morioka; Tama River; Kawatana; Sendai; Ichinoseki; Chikugo 

 River; Tsuchiura; Lake Biwa; Formosa. — Jordan & Richardson, Mem. 

 Carneg. Mus., IV, no. 4, 1909, p. 163; Formosa. — Berg, Ichthyol. Amur., 

 1909, p. 175; Amur Province. — Snyder, Proc. U. S. Nat. Mus., XLII, 

 1912, p. 403; Tokyo; Takamatsu River. — Jordan & Metz, Mem. Carneg. 

 Mus., VI, No. 2, 1913, p. 12; Corea. 



1903. Glanis asotus Jordan & Evermann, Proc. U. S. Nat. Mus., XX\', p. 320; 

 Tamusui River, Formosa. 



