EXPLANATION OF PLATE LXIL 



CYTHEEEA (?) MOOREI, Eth.fil. 



Y'w 1. A left valve — X 2. . . 



° 2. Portion of the anterior end of another specimen exhibiting the 



3. A right valve with an epiostracum and characteristic sculpture — 



X 2 



Pachydomella CHUTUs, -E/;^..^/. 



■i A left valve, a characteristic specimen— X 3. 



" 5'. Another left valve with well marked epiostracum— X 3. 



6 A similar specimen to Fig. 5 — X 3. 



"7 An internal cast of the valves in apposition— X 3. 



',' 8. A testaceous example with the valves in apposition— X 3. 



VaXIKOROPSIS (?) STtlARTI, Eth. JiL 

 9 A specimen with a limited number of oblique costse, the intersection 

 " ' of the latter and the spiral lines nodose— X 2. 



10 An example in which the sculpture is very regular, but tlie depres- 

 " ■ sions caused by the wearing off of the nodes commencing to show 



below the suture on the body-whorl — X 3. 

 „ 11. Portion of the characteristic sculpture highly magnifaed. 

 ,, 12. A specimen resembling Fig. 10 — X 2. 

 13. Portion of the mouth, imperfect— X 2. 



