18 THE NAUTILUS. 



confounded with any other; it might be compared only to Paludo- 

 mus laciuioides Aldrich, from Borneo, but that .s])ecies is larger, 

 heavier, has a more elevated spire, less tumid volutions, and is 

 entirely smooth, not to speak of the characteristic peculiar structure 

 of its umbilical area. 



The Paludomus Palawanica was collected by ]Mr. E. L. Moseley 

 in a brook about ten miles from Puerto Princesa in the Islaiul 

 of Palawan, Philippine Archipelago. 



TEREBRATULINA (UNGUICULA CPR. VAR ^ KIIENSIS. BALL 

 AND PILSBRY. 



? T. unguiciila Cpr. P. Z. S. 1S65, p. 201, figs. 1-4. 



? T. caput serpentis, var. unguicidata Dav. Trans. Lin. Soc. iv, p. 25, 1886. 



Terebratulina sp. Dav. Challenger Brach. p. 36, pi. 1, fig. 10, 1880. 



Habitat : Phillippiues, in 82 fathoms N. E. from Mindanao, 

 Chall. Exp. ; Coast of Province Kii, Japan, Stearns ; N. W. coast 

 of America, various authorities including Carpenter, Dall, Whit- 

 eaves, etc. 



Among the shells collected by Mr. Stearns in Japan, and 

 sent to Mr. Pilsbry for identification, is a coarsely radiately 

 striated Terebratulina which has been carefully studied, but in the 

 absence of more material, cannot be finally pronounced upon. It 

 appears to be the adult of a form of which a young specimen was 

 submitted by Dr. Davidson in 1879 to Mr. Dall for examination 

 and which had been collected by the Challenger Expedition. It 

 was not named at that time in view of the fact that it was obviously 

 young, and the number of nominal East Asian Terebratulinas ob- 

 viously too great for J;he known species. 



This shell is sculptured like T. iinguicxda Cpr. and the larger the 

 specimen, the more ungidcula seems to resemble the Japanese form. 

 T. unguicula under the name of caput-serpentis has been recognized 

 already in Japan, by Davidson. 



The present form differs from the largest unguicula with wliich 

 we have been able to compare it in the following particulars. It is 

 larger and proportionately somewhat wider and the beak propor- 

 tionately shorter, much such differences as would come about by 

 increased size in such a species as unguicula. ]f more material 

 should prove that the supposed variety cannot be connected with 

 unguicula, the varietal name can be taken as specific. The specimen 



