374 J. WILFRID JACKSON ON 
temperature 1°°8 C. Davipson further states that “in the British Museum there 
are likewise some white specimens stated to have been dredged near the Falkland 
Islands.” 
With regard to the Twofold Bay example, BLocHManN (1906, 1908), from a study 
of the original specimen, states that it is clearly distinct from LZ. wva, and on the 
grounds of differences in the brachial support and the number of pores in the shells 
of both forms, considers it an entirely new species, to which he has given the name 
of L. fulva. 
Regarding the Buenos Ayres example, I am of the opinion that this also is a different 
species from L. wva. According to Davinson’s figure (“ Chall.” Rept., pl. ii. fig. 4) 
it differs widely in outline from that of the type specimen and the additional example 
figured by him from the Gulf of Tehuantepec (2. B., pl. i. figs. 5-6). The beak is less 
produced and less compressed laterally, and the foramen is smaller. Moreover, the 
depth (600 fathoms) from which the specimen came is greater than that at which 
L. uva is known with certainty to live. 
In the above respects the Buenos Ayres example also differs from any of the 
specimens illustrated by Fiscuer and OrHierr (1892) and BLocumMann (1912) from the 
Magellanic region, in which the outline of the shell is more pyriform. 
OEHLERT (1907 and 1908), in his report on the Brachiopoda of the French 
Antarctic Expedition, figures and describes under the name of ZL. wva some extra- 
ordinarily large examples obtained presumably from the West Antarctic. For some 
unexplained reason, no particulars are given in either of these papers as to the exact 
place of discovery or the depth from which the specimens came. 
The largest example measures: length, 45; breadth, 30; thickness, 25 mm. 
The species is further recorded for the coast of Guatemala, South Peru, and 
Galapagos by Datu (1909), but no further particulars are given. 
Recently BLocHMANN (1912) has described and figured some interesting forms from 
a depth of 122 fathoms at South Georgia (Swedish Expedition), which up to the present 
appears to be the limit of its eastern range. 
It would appear, therefore, that the species is widely distributed from Tehuantepec 
to Cape Horn, Falkland Islands, South Georgia, West Antarctic, and has crept north 
along the eastern coast of South America as far as Buenos Ayres, if the identification of 
this example is correct. 
In addition to the Twofold Bay record referred to above, the species has been further 
recorded from Australian waters. 
Hervey (Mem. Aust. Mus., iv., 1902, p. 289) cites it from Coogee (49-50 fathoms) 
and Botany Bay (79-80 fathoms), both in the neighbourhood of Sydney. 
BLOcHMANN (1912), however, from a study of one of HEpLEy’s specimens, has been 
able to satisfactorily demonstrate that the reference in question is due to an error in 
identification, the specimen being referable to Terebratulina cancellata, Koch. 
It is possible also that the later record by Hrpiey (Records Aust. Mus., vi., 1905, 
