No. 2314. 



LIST OF RECENT BRACHIOPODA—DALL. 



341 



TEKEBRATALU CAURINA KUBESCENS Dall. 



Terebratalia transversa rubescens Dall, Nautilus, vol. 24, No. 8, Dec. 1910, p. 96. 

 Type locality. — San Pedro, California. 



Cat. No. 



110887 

 2538200 



Locality. 



Monterey, Cal.. 

 San Pedro, Cal. 



Collector. 



Dall... 

 Bryant . 



Number 

 of speci- 

 mens. 



Type. 



TEREBRATALIA OCCIDENTALIS Dall. 



Terehratella occidentalis Dall, Proc. Cal. Acad. Sci., vol. 4, p. 182, pi. 1, fig. 7. 

 1871; Proc. Acad. Nat. Sci. Phila. for 1891, pp. 172-3, pi. 4, figs. 8-9, (not 6-7 

 as indicated in the explanation of the plates). 

 Terehratella transversa Davidson, Mon. Rec. Brach., pt. 2, p. 79 (in synonymy), 

 pi. 16, fig. 13 (only), 1887, not of Sowerby. 



Type locality. — Off San Clemente Island, California. 



Cat. No. 



130563 



110783 



95850 



123144 



Locality. 



San Pedro, California 



Off Anacapa Island, California, 46 fathoms 



Off San Clemente Island, 45 fathoms 



Cortez Bank, 47 fathoms 



Collector. 



Oldroyd 

 B. F... 

 B. F. . . 

 B. F... 



2yo. 

 1 

 1 



1 V. 



This species resembles the variety rubescens of T. transversa in color, 

 but is much more inflated, sometimes white, with red color only on 

 the ribs, but may be instantly distinguished from any of the forms of 

 transversa by the fact that its mesial fold is directly opposite to that 

 of any of them, the sulcus being in the pedicel valve while in trans- 

 versa it is in the brachial valve. It was confused by Davidson with 

 the red variety of transversa. 



After a study of the variations in plication observed in this and 

 other species of Terebratelloids of the North Pacific, I conclude that 

 too high a systematic value has been placed on the various modifi- 

 cations, in this group at least, by some excellent students of the 

 brachiopoda. 



TEREBRATALLl OBSOLETA Dall. 



Terehratella occidentalis, var obsoleta Dall, Proc. U. S. Nat. Mus., vol. 14, p. 



186, 1891. 

 Terebratalia obsoleta Dall, Trans. Conn. Acad., vol. 9, p. 382, pi. 2, figs. 4-12; 



pi. 3, figs. 1-15, March, 1893; Proc. U. S. Nat. Mus., vol. 17, p. 726, pi. 30, 



fig. 7, 1895. 

 Dallinella obsoleta J. Allan Thomson, Geol. Mag., dec. 6, vol, 2, No. 607, p. 75, 



Jan. 1915. 



Type locality. — Northwest of Cerros Island, I^ower California, in 

 58 fathoms, bottom temperature 50° 8 F. at United States Fish 

 Commission station 2983. 



