202 PROCEEDINGS OF THE ACADEMY OP 



5. DisciNiscA LAMELLOSA, Broderip. 



Orhicula lamellosa, Bred. P. Z. S. p. 124. 1833. Bve. 



Conch. Icon. pi. ii. fig. 3. 1862. 

 Orhicula tenuis^ Reeve, not Sowerby. 

 Discinisca lamellosa, Dall (type), Bull. 1. c. p. 41. Am. 



Journ. Conch, vii. p. 7G. 1871. 



Panama to Peru. 



6. Discinisca stella, Gould. 



Discina stella, Gould, Proc. B. S. N. H. vii. p. 323. Sept. 



1860. Otia Conch, p. 120. 

 Orhicula stella, Reeve, Conch. Icon. pi. 1, fig. 1. 1862. 

 Discinisca stella, Dall, Bull. 1. c. p. 41. Am. Journ. Couch. 



vii. p. 76. 1871. 



Singajjore ; Philipijines ; China Seas. 



7. Discinisca TENUIS, Sowerby. 



Orhicula tenuis, Sby. Thes. Conch, i. p. 366, pi. 73, figs. 



4, 5-. 1847. Not of Reeve. 



Discinisca tenuis, Dall, Bull. 1. c. p. 41. Am. Journ. Conch. 



vii. p. 76. 1871. 



Hahitat ? 



Family LIXGULID.E, King. 



Linguliclae, King, Dav. Int. Clas. Brach.p. 133. Dall, Am. Journ. 

 Conch, vi. p. 153. 



Section LINGULINiE, Dall. 

 Lingnlinae, Dall, I.e. p. 153. 1870. 



Genus LINGTJLA, Bruguiere. 



Lingula, Brug. Enc3\ Meth. tab. 250. 1789. Dav. Int. Clas. 



Brach. p. 133. Dall, 1. c. vi. p. 134. 1870. 

 Pharetra, Mus. Bolt. Ed. ii. p. 111. 1819. 



1. Lingula Adamsi, Dall. 



Lingula tumidula, A. Ad. (not of Reeve), An. Mag. Nat. 

 Hist. 3d ser. xi. p. 100. 1863. Davidson, P. Z. S. p. 310. 

 pi. XXX. fig. 1. 1871. 



Korean Archipelago. 



2. Lingula affinis, Hancock. 



L. affinis, Han. Tr. lioy. Soc. p. 851. pi. Ixvi. figs. 1-2, 1857. 

 Dall, 1. c. vii. p. 77. 1871. 



East Indies. 



