Nature

On Two Orders of Arachnida Opiliones, especially the Suborder Cyphophthalmi, and Ricinulei, namely, the Family Cryptostemmatoidae Palaeozoische Arachniden

ARACHNOLOGISTS must unite in a vote of thanks to Drs. Hansen and Sörensen for their splendid achievement in producing their treatise on Arachnida. The volume, announced many years ago as in ...
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Systematics of the "giant" Ricinulei (Ricinoididae: Ricinoides) of West Africa with descriptions of five new species and comparative morphology of the male copulatory apparatus ...

The Ricinulei Thorell, 1876, or "hooded tick-spiders," are among the rarest and least studied arachnid orders. Ricinoides Ewing, 1929, the only Old World genus of extant ricinuleids, with 11 species ...
Nature

Rarity of the Archaic Arachnids, Podogona (Ricinulei)

THE writer of the review in NATURE of June 29 of Mr. Savory's book on Arachnida refers to a statement made by that author with regard to the number of specimens of Podogona or Ricinulei known to exist ...