Manchester Meuioirs, Vol. I. ( 1 906), No. 5- 1 3 



with debris. Most of the specimens are badly fractured 

 at the edge of the test. Rather rare. 



Lagena orbignyana ? var. falcata, nov. (PI. 2, fig. 12.) 



The test is compressed, and has two recurved spines, 

 springing respectively from either side of the shell, near 

 the orifice. The fine line running on each side of the 

 delicate keel (or very angular margin) is continuous 

 except at the oral end of the shell. The mouth is oval 

 and slightly produced. The internal tube is short and 

 free. Mr. Millett kindly drew my attention to Dr. 

 Chaster's Lingiilana Jierdmani ('92, pi. i, fig. 9), a detached 

 chamber of which would have a strong resemblance to 

 the Delos specimens, but these latter bear no evidence of 

 fracture. They could hardly be the initial chambers of 

 Dr. Chaster's species, as his examples bear no spines 

 on the initial chamber. The lines above referred to are 

 also absent in Lingulina het'dinani. The two specimens 

 found are exactly alike. Very rare. 



Lagena bicarinata, Terquem, sp. (PI. 2, figs. 13, 14, 15.) 



Fissiirina bicarinata, Terquem ('82), p. 31, pi. 9, 

 fig. 24. 



Lagena bicarinata (Terquem), Balkwill and Millett 

 ('84), p. 82, pi. 2, fig. 4. 



L. bicarinata (Terquem), Balkwill and Wright ('85), 

 p. 342, pi. 12, fig. 30. 



L. bicarinata (Terquem), Wright ('86), p. 320, pi. 26, 

 fig. 8. 



L. bicarinata (Terquem), Halkyard ('89), p. 66, pi. 2, 

 fig. I. 



L. bicarinata (Terquem), Millett (:0l), p. 624, pi. 14, 



fig- 13- 



