14 BULLETIN 112, UNITED STATES NATIONAL MUSEUM, 



Section YOLDIELLA Verrill, 1897. 



YOLDIA SILIQUA Reeve, 1855. 



Last of the Aictie Voy., vol. 2, p. 396, pi. 33, fig. 3. 

 Norton Sound, Alaska. Also Atlantic. 



YOLDIA INTERMEDIA Sars, 1865. 



Fos. Dyre. Quatern. period, p. 38, figs. f)2. 96. 

 Bering Strait and Norton Sound. Circuniboreal. 



YOLDIA ORCIA Dall. 1916. 



Proc. U. S. Nat. Mus., vol. 52, No. 21S3, p. 399. 

 Tillamook Bay, Oregon, to San Diego. 



YOLDIA SANESIA Dall. 1916. 



Proc. U. S. Nat. Mus., vol. 52, No. 21S3, p. 399. 



Boca de Quadra, Alaska, to Point Conception, California. 



YOLDIA OLEACINA Dall, 1916. 



Proc. U. S. Nat. Mus., vol. 52, No. 2183, p. 398. 

 Arctic Ocean north of Bering Strait. 



YOLDIA CAPSA Dall, 1916. 



Proc. U. S. Nat. Mus., vol. 52, No. 21S3, p. 400. 

 Off Tillamook Bay, Oregon, in 7SG fathoms. 



YOLDIA CECINELLA Dall, 1916. 



Proc. U. S. Nat. Mus., vol. 52, No. 21S3, p. 399. 

 Aleutian Islands to Gulf of California. 



Genus PLEURODON Wood, 1840. 



Subgenus Cyrtlla A. Adams, 1SG0. 



CYRILLA MUNITA (Carpenter) Dall, 1898. 



Trans. Wagner Inst., vol. 3. pt. 4. p. G02. 

 Santa Barbara Islands, to Gulf of California. 



Genus MALLETIA Desmoulins, 1832. 



MALLETIA TALAMA Dall, 1916. 



Pr<>c. U. S. Nat. Mus., vol. 52, No. 21S3, p. -400. 

 Bering Sea to Oregon. 



MALLETIA PACIFICA Dall, 1897. 



Bujl. Nat. Hist. Soc. Brit. Col., No. 2, p. II, pi. 2, fig. 11. 

 Chignik Bay, Alaska, to Monterey, California. 



MALLETIA FABA Dall, 1897. 



Bull. Nat. Hist. Soc. Brit. Col., No. 2, p. 10. pi. 2. fig. 10. 



Queen Charlotte Islands, British Columbia, to Lower California 



MALLETIA FIORA Dall. 1916. 



Proc. U. S. Nat. Mus., vol. 52, No. 21S3, p. 400. 

 Off Sitka, Alaska, 1,5G9 fathoms. 



