100 
“The Lingula anatina was for a long time the only species known ; 
another one, the Lingula hians, was described by Swainson in his 
‘ Zoological Illustrations,’ and we are indebted to Mr. Cuming for 
five new ones; two, the Lingule Audebardii and semen, have been 
already described by Mr. Broderip in the Transactions of this So- 
ciety, and I have now the pleasure of introducing three which I 
believe to be entirely new to science. 
Lingua ovaris. Ling. testd angustd, elongato-ovali, glabrd quasi 
politd, sarbanwetea ; apice acuminato ; valvis utrinque clausis. 
Hab. 
Long. 13; ; lat. = poll. 
‘This shell, which approaches rather in appearance to that of the 
Lingula anatina, may nevertheless be distinguished by its complete 
oval form; though it is somewhat a ee at the apex, the um- 
bones are much less prominent, and the valves are more compressed, 
and more closely united all round. 
Lincuta tumripuLta. Ling. testd corned, tenuissimd, rubro-oli- 
vaced, subquadratd, versus apicem parim attenuata, umbonibus vir 
prominulis ; valvis tumidulis, marginibus irregulariter reflexis. 
Hab. ad oras Nove Hollandiz. 
Long. 2,},; lat. 155 > poll. 
Reeve, Conch. Syst. v. i. p. 180. pl. 125. f. 4. 
«The shell of the Lingula tumidula differs materially, both in size 
and composition, from that of any of the previously known species ; 
it is considerably larger and thinner, and rather horny than calca- 
reous, and the colour of it is a burnt olive-red. From the swollen 
appearance of the valves I am inclined to think that the shell is 
perfectly pliable and elastic during the life of the animal. 
Lineuxa compressa. Ling. testd corned, tenuissimd, valdé com- 
pressd, fusco-olivaced, subquadrato-ovali, versus apicem atienuatd, 
umbonibus depressis, indistinctis ; valvis utringue clausis. 
Hab. ad Palanam, ins. Masbate, Philippinarum. 
Long. 1,8; lat. 1); poll. 
‘« This curious species was found by Mr. Cuming in sandy mud at 
low water at Palanas, Island of Masbate, one of the Philippines. Its 
shell is of the same thin horny composition as that of the Lingula 
tumidula; in fact I at first took it to be merely a local variety of that 
species. Upon comparison however I feel assured that it is di- 
stinct; it is more attenuated towards the apex, and from the valves 
being remarkably compressed and closely united all round, I am in- 
duced to suppose that the animal must be proportionably smaller. 
The two specimens from which the above description is drawn do 
not exhibit the pallial cilia, which Mr. Cuming’s usual care would 
have protected ; they may therefore not have been exserted beyond 
the margin of the valves. He did not succeed in obtaining the pe- 
dicle of this species. 
“Mr. Cuming exhibits on this occasion specimens of all the known 
Lingule from his own collection, and I am not aware that four 
