8 



although at the time he could not find tlie description. Lower 

 Bed, rather scarce. 



62 jV. 2)i/ffniaea, Egger. Upper Bed, very rare. 



Genus — Gaudryina, cVOrhigny. 



63. *'6'. rugosa, d'Orb. Closely resembles V. triquetra, from 

 which it differs only in the biserial arrangement of its later cham- 

 bers. Lower Bed, rather scarce. 



Genus — Clavulixa, cVOrhiyny. 



64. C. communis, d'Orb, Lower and Upper Beds, very rare. 



65. C. angidaris, d'Orb. Lower and Upper Beds, very rare. 



Genus — Bulimixa, cVOrhiyny. 

 Q%. B. ehyantissima, d'Orb. A single example was obtained of 

 this beautiful little shell from each of the l^eds of the Muddy 

 Creek section. 



67. *B. obtusa, d'Orb. A sub-cylindrical ^■ariety with obtuse 

 aboral extremity. Occurs as a Cretaceous form in European 

 strata. Lower Bed, very rare. 



Genus — Bolivixa, (VOrhiyny. 



68. *B. jmncfafa, d'Orb. Lower Bed, rather scarc6. 



69. *B. limbata, Br. Li the recent condition this is a common 

 form on the New Guinea coasts and the Australian coral-reef. 

 Lower Bed, rare. 



70. *B. dikifata, Rss. Two specimens, which are not altogether 

 characteristic, have been assigned to this species. They are appa- 

 rently intermediate forms uniting B. dilafata witli B. pyymaea, 

 Br. Lower Bed. 



Genus — Cassidulixa, d'Orhiyny. 

 7L C. subglobosa, Br. In the recent condition it has a deep 

 water habitat. Common in Lower Bed, but of small size. Upper 

 Bed, very rare. 



72. ^C. htvigata, d'Orb. Lower Bed, rare. 



Genus— Ehrenbergina, Renss. 



73. *E. serrata, Rss. Lower Bed, rather scarce. 



FAMILY LAGENID.F:. 

 Genus — Lagexa, Walker (t Jacob. 



74. *Z. hexayona, Will. A single specimen. Lower Bed. 



75. L. sulcata, W. k J. Lower Bed, rare. Upper Bed, very 

 rare. 



76. *X. ylobosa, Montag. Lower Bed, rare. 



