Seotion Hyphantosoma Dall. 

 PITAIHA (HYPH;. .;a) 0A?.3A3;:A (Gupp-^ 



0:- the re a ( ^I'-'ee ) carbaeea &upp2\ 1866, '"iiart. Jo . "eol. 3og. 



london, vol. 22, p. 292, pi. 18, fio-. 1,5. 

 Galljr^ta carTpasea (Gu-opy) Gabli, IS?"^, Trans. ,_ . iios. 3oc., 



ne\r or., vol. 15, p. 250. 

 Oytherea oarbasea Guppy, 1874, Geol. Mag., decad , 'ol. 1, p. 



442 f cheok list) . 

 -jyfcl-crea csroas ea Puppy. 187G, Quart. Jour. Geol. 3oe, london, 



vol. 52, p. 551. 

 Pitarla ( E-phar tosoma ) carbasea (Guppy) Dall, I'^r^,^ ?rans. v;so--ir.T" 

 Jrce Inst. Jci., Philadelphia, vol. Z, . G, p. 12„G. 

 ritarla ( rlyphantosoma ) n. sp. Toula, IOCS, Jahrb. K.-K. geol. 



Pitar centa^i-rnlata Grown, and Pilsbr: , 1911, "^ur. Aci-.d. Tat. 

 3ci., : elphia, vol. 63, pp. .'^G9-27"'. 



'Description .- "Shell roiUided, rath- llateral, tumid, 



ulcated "by lines of growth deciissati-: 'iatin^r 



striae, which divaricate on the cLiccri ' " ' , 



scome sulDrnp-ose - ■ " n • 1: 



.oarcely 'distinct; ■ ir /ar-in 



