DR. T. DAVIDSON ON RECENT BRACHIOPODA. 219 



Shell squarely oblong long'itudinally, slightly broader anteriorly. Sides almost 

 parallel, nearly straight in front, obtusely tapering at its posterior margin. A^alves 

 flattened or very gently convex. Surface marked with very numerous close and minute, 

 equidistant, slightly projecting, concentric lines or ridges of growth. Colour light 

 yellow or brownish yellow, with a reddish-broAvn spot near the beak. Peduncle about 

 twice the length of the valve. Interior of the valve not known. Length of shell 1 inch 

 5 lines, breadth 10 lines. 



Hah. Tsaulian harbour, Korean Archipelago, 7 fathoms, mud (Adams) ; dredged by 

 Capt. Weston near the shore, off the island of Eormosa. 



Ohs. Few specimens of this species have been hitherto brought to England. A. Adams, 

 in 1863, identified it with Reeve's L. tumidula, but did not figure the shell. He sent it 

 to me to be figured in 1871, and I fell into the same mistake and referred it to Reeve's 

 species. In 1873 ]Mr. Dall gave it the name of L. Adamsi, which I now readily adopt, as 

 I never felt satisfied that the shell had been correctly identified. Heine, in his 

 ' Expedition in die See'n von China, Japan und Ochotsk,' 1858, Bd. i. p. 137, alludes 

 to a Linyula from Oosima (N.E. of Eormosa) which may possibly be L. Adamsi, but 

 I have not been able to consult his work. 



122. LiNGULA Reevii, Davidson. (Plate XXVIII. figs. 17, 18f^) 



Lingula ovalis, L. Reeve, On Lingula, Proc. Zool. Soc. part ix. 1811, p. 100; G. B. Sowerby, Thes. 

 Conch, p. 393, pi. b;vii. fig. 8, 184G ; Davidson, Ann. & Mag. Nat. Hist. 2nd scr. vol. ix. p. 377, 1853; 

 L. Reeve, Conch. Icon., Monogr. oi Linyula, pi. i. fig. 1, 1859; Dall, Amer. Journ. of Coach, vol. vi. 

 p. 15G, 1870, and Proc. Acad. Nat. Sci. Philadelphia, p. 203, 1873. 



Linyula reevii, Davidson, Report on the Brachiopoda, Voyage of II. M.S. ' Challenger,' Zoology, 

 vol. i. p. 62, 1880. 



Shell oblong oval, broadest about the middle, longer than wide, rather narrow; sides 

 very gently curved outwardly, front rounded ; posterior edge obtusely acuminated ; valves 

 moderately convex. Surface smooth, blue-green or emerald and verdgiris-green, 

 especially along the middle ; peduncle thick, much longer than the length of the shell. 

 Length of shell 1 inch 5 lines, breadth 8 lines. 



Ilab. Sandwich Islands (Pease). 



Ohs. This beautiful and brilliantly coloured shell was described in 181.1 by Mr. Lovell 

 Reeve under the name of Liiiffula ovalis ; but, as I have stated in my report on the Brachio- 

 poda of the ' Challenger ' Expedition and elsewhere, this name cannot be retained for tlie 

 recent shell, because it had been applied by Sowerby as far back as 1813 to a well-known 

 Kimmeridge-clay species (Min. Con. tab. 19. fig. 14-, April 1813). I therefore, in 1880, 

 proposed that the name of the recent form should be altered to that of L. Heevii. In 

 181-1, as stated by Reeve, Mr. Cuming knew nothing of the haljitat of the shell under 

 description ; but since then a number of specimens of this species have been received 

 from Honolulu, one of the Sandwich Islands. 



