78 THE LINGULIDZ OF THE QUEENSLAND COASTY 
specimens, shell translucent, colour pale green 
and) ‘bright SECM . 2 .ts cise loi eloe «leer ebetelste drt etait L. hians 
b. valves more or less calcified, maintaining 
form more or less completely. ............ 4 
4. a. large opaque strongly calcified valves of pale 
or coppery red colour, ratio of length to breadth 
2.2 to 2.3—no depression on either side of mid- 
h}1( eas ROR BAR GCC OaOCOO CODED OOS cocc ce oe L. murphiane 
b. fairly large shells, well calcified, translucent at 
free end, greenish or copper coloured, slight 
depression on either side of midline, ratio — 
generally <2:0—2.0 "9 2.350 cco selene L. bancrofte 
c. Shell small, narrow, valves generally dark 
green at free extremity, rest may be coppery 
in tint, free extremity rather squared with median 
prominence, ratio of length to breadth variable, 
er PAK OMA ELEN WS! 8) Boge BS aapuC od oGbralocmcc DL. exusta. 
Thomson (1918, p. 51) in referring to the distribution 
of Brachiopods in the Southern Hemisphere, stated that, if 
we exclude deep sea forms, there were few species common 
to the Southern and Northern Seas and that in the case of 
Lingula and of Platidia, the identifications of the southern 
forms were in need of confirmation. In the list of five such 
species mentioned by him are three of Lingula, viz., L. 
rostrum from Moreton Bay, the Indian Ocean and Japan ; 
L. hians from Port Jackson and the China Sea ; L. tumidula 
from Moreton Bay and the Philippines. We have shown 
that there is no undoubted record of L. rostrum (L. anatina) 
from Australia ; that ZL. hians is widely distributed in north . 
eastern Australia and adjacent islands ; and that L. tumidula 
occurs in Hervey Bay and is probably quite distinct from 
the Philippine species L. compressa. 
The following table represents an attempt to show the 
relationships of different species in various Eastern Pacific 
regions. We think that a comparison of the East Indian 
and Japanese L. rostrum with the Philippine typical form 
should be carefully made—hence our query regarding such 
identifications. 
