THE BEACHIOPODA OF THE SCOTTISH NATIONAL ANTARCTIC EXPEDITION. 149 



There is also the possibility of relationship with two other fossil species, viz. 

 Ilcnuihyris pUciyera (Jhering) and //. australis, Buckman, from the Miocene- Oligocene 

 beds of the same island. 



Liothyrina uva (Broderip). (PI. I. fig. 9-) 



Terehralula uva, IJmderii-, 1833, Pro,: Zool. Soc. London, pt. i., p. 124. 



1835, Traits. Zool. Sue. London, vol. i. p. 142, pi. xxiii. fig. 2. 

 ][ " 1880,' Davidson, " Challenger" Report, p. 31, pi. ii. figs. 4-4a(fig.s. 3-36 



are Liothyrina fulva, Bl.). 

 Liothyrisuva (Brod.), 1886, Davidson, Mon. Recent Bne-h., pi. ii. figs. 5-7. 

 Terehratula (Liothyrina) moseleyi, Dav., 1892, Fiscber and Uehlert, BulL Soe. d'tnst. nat Aalun, 



vol. V. p. 264, pi. viii. figs. 9-23. 

 Liothyrina uva (Brod.), lOOti, Bluehmann, Zool. .\nzeiyer, vol. xs.x. p. 698. 



1907, Oehlert, Bull. Mu,. d'hist. nat. Paris (1906), vol. xii. p. 555, text-figs. 

 '' 'I 1908^ Oehlert, Expedition aniardique Franchise, 1903-1905, Sciences nat. 



Brarhiopode.^, ]A. i. and text-fig.s. 



1908, Blochmaun, Zeiisclir. f. wits. Zool., Bd. xc. p. 615. 



1908, Dall, Bull. Mus. Gomp. Zool. Harvard Coll., vol. xliii, p. 443. 

 ', 1909, Dall, Proc. U.^. Nat. Mus, vol. xxxvii. p. 279. 

 I' I \()U^Y.ich\ev, Deutsche S.- P. Expedition (Bi-Achwi^oden), Bd. xii. (Zoologie 



iv.), Berlin, p. 338. 

 1912, Blochmaun, Die Brack, der Schiced. S.-P. Expedition, Bd. vi. 

 (Zoologie ii.). No. 7, Stockholm, p. 1, pi. i. figs. 1-13; pi. ii. figs. 

 16-18; pl.iii. figs. 20-28. 



iJa^.-Station 346 ; lat. 54° 25' S., long. 57° 32' W. (Burdwood Bank), 56 fathoms. 

 December I, 1903. Sea bottom, Bryozoa. Temperature 41° 8 F. 



066'.— Several dead examples of a small species of Liothyrina were trawled at the 

 above station at 56 fathoms. 



The largest example (PI. 1. fig- 9) measures: length, 15-5 mm.; breadth, 

 13 mm., and agrees very closely with the specimen figured by Fischer and Oehlert 

 {op. cit, pi. viii. fig. 23) under the name of Terehratula {Liothyrina) moseleyi, Dav. 

 The two vascular sinuses show very clearly in the interior of the ventral valve, as in 

 their figured example. The dorsal valve of this specimen is also interesting as showing 

 a very distinct trace of a median septum, as well as a strongly developed hinge apo- 

 physis, which occupies a considerable portion of the posterior end of the valve. 



' Other noteworthy features are the remarkable thickness of both valves, and the 

 abundance of coarse growth lines, which would lead one to infer that the shell had 

 attained an adult, or even a gerontic, condition. 



Most of the other examples, though smaller in size, also show a considerable 

 thickness in their shells, which renders the test quite opaque. 



All are similar in form, being somewhat pyriform, and attaming tlieir maximum 

 diameter a little anterior to the middle of the valves. 



The colour of the specimens is milk-white. 



The examples of Liothyrina obtained from the colony of a new Cephalodiscus, 



(ROY. SOC. EDIN. TR-VN8., VOL. XLVIII., 371.) 



