140 BULLETIN 100, UNITED STATES NATIONAL MUSEUM. 



which are divergent and not in contact, by the form of the mouth 

 shields, by the larger and longer under arm plates, etc. 



OPHIOPLINTHACA PULCHRA Kcehler. 



Plate 30, figs. 1-7 ; plate 94, fig. 5. 



Ophioplinthaca pulchra Kcehler ('04), p. 125, pi. 27, figs. 5-8. — H. L. Clark 



('15), p. 211. 

 Ophioplinthaca mitis Kcehler ('04), p. 127, pi. 25, figs. 1-3. — H. L. Clark 



('15), p. 211. 



Localities. — Albatross station 5280; China Sea, in the vicinity of 

 southern Luzon; Malavatuan Island (N.) bearing S. 60° W., 11.3 

 kilometers (6.1 miles) distant (lat. 13° 55' 20" N., long. 120° 25' 55" 

 E.) ; 353 meters (193 fathoms) ; July 17, 1908; gy. S. 



Two specimens (Cat. No. E. 102, U.S.N.M.). 



Albatross station 5527; between Siquijor and Bohol Islands; Bali- 

 casag Island (C.) bearing N. 14° W., 15.20 kilometers (8.2 miles) 

 distant (lat. 9° 22' 30" N., long. 123° 42' 40" E.) ; 717 meters (392 

 fathoms) ; August 11, 1909 ; glob. Oz. 



One specimen (Cat. No. E. 103, U.S.N.M.). 



Albatross station 5577; north of Tawi Tawi; Mount Dromedario 

 bearing S. 9° W., 20.20 kilometers (10.9 miles) distant (lat. 5° 20' 

 36" N., long. 119° 58' 51" E.) ; 439 meters (240 fathoms) ; Septem- 

 ber 23, 1909 ; crs. S. 



One small specimen (Cat. No. 41061, U.S.N.M.). 



Albatross station 5629; Patiente Strait and southward; Doworra 

 Island (S.) bearing S. 62° W., 11.1 kilometers (6 miles) distant 

 (lat. 0° 50' 00" S., long. 128° 12' 00" E.) ; 375 meters (205 fathoms) ; 

 December 2, 1909 ; co. S. 



Two specimens, of which one is small (Cat. No. E. 101, U.S.N.M.). 



Albatross station 5661 ; Flores Sea ; Cape Lassa bearing N. 21° E., 

 23.16 kilometers (12.5 miles) distant (lat. 5° 49' 40" S., long. 120° 

 24' 30" E.) ; 329 meters (180 fathoms) ; December 20, 1909; hrd. 



One large specimen (Cat. No. E. 100, U.S.N.M.). 



Albatross station 5664; Macassar Strait; Kapoposang Light bear- 

 ing N. 66° E., 7.04 kilometers (3.8 miles) distant (lat. 4° 43' 22" S., 

 long. 118° 53' 18" E.) ; 732 meters (400 fathoms) ; December 28, 

 1909 ; hrd. 



One small specimen (Cat. No. 41059, U.S.N.M.). 



Notes. — The examination of the series of specimens collected by the 

 Albatross has convinced me that there is no reason for maintaining 

 the distinction between Ophioplinthaca mitis and O. pulchra, both 

 of which I described in 1904 from the Siboga collection, in which 

 certain intermediates which I find in the Albatross collection were 

 lacking. 



