PLATE 83, 



Legion NASSELLARIA. 



Orders STEPHQIDEA et SPYROIDEA. 



Families Stephanida, Semantida, Coeonida, Tvmpanida, 

 Zygospyeida, Phoemospyeida et Andeospyeida. 







(ZOOL. CHALL. EXP. — PART XL. — 1886.) — Bl\ 



