258 ART. 2. — H. MATSUMOTO : 



This species is viviparous. I once dissected out twenty-four 

 embryos of various sizes from a single adult. 



Stegophiura sculpta (Duncan). 



Ophioglypha sculpta : Duncan, Journ. Liun. Soc. Londori, XIV, 1879, 

 p. 455, PL IX, figs. 6-8, PI. XI, fig. 35 ; Lyman, Eep. Challenger, V, 1882, 

 p. 77. 



Oplmira sculpta : Claek, BuU. U. S. Nat. Mus., LXXV, 1911, p. 73. 



Korean Straits; 23 fathoms (Duncan). Eastern Sea; 95-139 

 fathoms (Claek). Off Honshu ; 31-41 fathoms (Claek). 



Stegophiura nodosa (Lutiœn). 



Opidura nodosa : Lütken, Vid. Meddel., 1854, p. 6; LÜTken, Addit. 

 ad Hist. Oph., I, 1858, p. 48, PI. II, fig. 9 ; Gedsg, Panna Arctica, I, 1900, 

 p. 263 ; Ckirk, BuU. U. S. Nat. Mus., LXXV, 1911, p. 70, fig. 20. 



Ophioglypha nodosa : Lyman, 111. Cat. Mus. Comp. Zool., I, 1865, !>. 

 49 ; Lyman, Rep. Challenger, V, 1882, p. 78 ; Kcehlee, Bes. Camp. Sei. 

 Monaco, XXXW, 1909, p. 164, PI. XXVI, figs. 7 & 8. 



Okhotsk Sea ; 40-109 fathoms (Claek). 



Berincr Sea. Off Alaska. Arctic Ocean. 



Stegojyhiura sterea (Clark). 



Opldoglypha sterea : Claek, Bull. Mus. Comp. Zool., LI, 1908, p. 243. 



OpJdura sterea : Claek, Bull. U. S. Nat. Mus., LXXV, 1911, p. 75, 

 fig. 22. 



Numerous specimens ; Okinosé (a submarine bank), Sagami 

 Sea ; 83 fathoms. Numerous specimens ; Uraga Channel ; 35 

 fathoms. One specimen ; Namerigawa, Etcliii. 



