286 PROCEEDINGS OF THE NATIONAL MUSEUM. vol. xxvii. 



30. POROCOTTUS TENTACULATUS (Kner). 



('ottm tcntuc.ulatm Kxek, Sitzber. Akad. Wisp. AA'ien, LVIII, 1868, p. 22, pi. v, 

 fio'. 12; "Singapore;" evidently an error. (No. 5591a Wien. Mus.) — Jordan 

 and EvERMANN, Fish. X. and M. Anier., II, 1898, p. 2000; after Kner. 



Head 3^. D. \'1-16 or IT; A. 14 or 15; \. I, 13, P. 14 or 15. Head 

 small, month small, the lower jaw incltKled; eve large, 3 in head, 

 lono-er than siiont; interorbital space channel-like, less than one-half 

 diameter of (\ve; a sharp spine befoi-e each eye, on which is a fringed 

 tentacle; supraocidar ridge ending in a blunt, forked, Iwn}- knob, on 

 which is a small thread-like tentacle; the quadrangular interspace 

 between these two sets of tentacles is excavated; preopercular spine 

 long, curved upward, two-thirds diameter of eye; the second si)ine 

 much shorter and turned backward; 2 spines lower, turned downward; 

 subopercle with a spine turned downward; a similar one on opercle; 

 maxillarv reaching to middle of eye; lower jaw with large pores. 

 Dorsal tins low, the rays flexible, the two close together; ventrals 

 reaching vent; pectorals past beginning of anal. Skin of body 

 wholly naked; lateral line complete, bending downward on caudal 

 peduncle. Color clear brown, darker al)ove, the head alcove with a 

 few large dark-brown spots, wliich form obscure bands, 1 of these 

 from front of eye across upper lip, second broader from eye across 

 subopercle; lower jaw speckled; throat and breast plain yellowish; 

 back with about 6 dark cross bands, those most anterior the broadest; 

 sides of body with a network of brown streaks around pale spots; a 

 large bright yellow spot at base of caudal; tins all iinely spotted with 

 whitish and dotted wnth dark, the caudal witli 5 or 6 dark cross bands; 

 pectorals faintly barred. (Kner.) A single specimen. 2 inches long, 

 said to be from Singapore, which is of course an error. It pro])ably 

 came from the Pacific coast of Asia, perhaps from Yezo or Decastris 

 Bay. 



{tentaciiJatKs^ having tentacles.) 



22. ARGYROCOTTUS Herzenstein. 



Argi/rocottK.t IIekzexsteix, jNIelanges Biol. Ac. Inij). Soi., XIII, 1892, p. 219; St. 

 Petersbnrg. 



Spinous dorsal short; ventrals extremely long, their tips extending 

 beyond front of anal tin; gill membranes scarcely united to the isth- 

 mus, forming a broad fold across it, no slit behind the last gill; teeth 

 on the vomer, none on the palatines; skin entirely naked, without 

 scales or bony plates; preopercles with 3 small spines. North Pacitic. 



{apyvpos^ silver; Oottu-s.) 



