PLATE XVn. 



riG. 



1. — Lithornithium Hirimdo of Ehrenberg, Mik., PL XIX, fig. 53, but 



this is a much finer and more perfect specimen ; frequent in 



the Barbados deposit : size very variable. 



2. — A broad and stunted variety of Podocyrtis Schomburgkii. Mik., 

 PI. XXXVI, fig. 22. 



3. — Podocyrtis (?) with five spined or serrated legs : body and sur- 

 mounting spine all very irregularly foraminated. Measures 

 .00462 high, .00325 wide. Barbados, slide No. 38. 



4. — A Dictyospiris exhibiting the very curious bulbous terminations 

 of the spines assummg a cellulate (?) appearance. 



5. — ^A very regularly aerolated small hollow cone, frequent in the South 

 Naparima, Trinidad slides. Cornutella profundis Ehr. 



6. — ^Petalo.spii-is diaboliscus — Mik., PI. XXXVI, fig. 12 — variety, with 

 the lower spines prolonged and forked at the ends. 



1. — Variety of Rhopalocanium (?) 



S. — Another state of Rhopalocanium, with the wing-like membranes 

 stiU attached to the body, and roughened with irregidar wrinkles. 



