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Proceedings of the Royal Society of Edinburgh. [Sess. 
pegs, these being replaced by minute papillae. The lateral duplicature 
is provided with a small but well-formed condyle. Postmentum undivided. 
Collum moderately convex. Lateral lobes rather short, evenly rounded. 
Fig. 6. — Calyptophyllum ohvolvatuni, n. sp. Gnathoohilarium of male. 
Fig. 7 . — Calyytophyllum ohvolvatum , n. sp. Second pair of legs of tlie 
male (P2) and penis (p.), posterior view, g., Tarsal soles. 
and adorned with some more or less distinct sulci along their posterior 
margin. Following segments dull or with a silky sheen, due to the dense 
striation ; the prozonites bear no traces of transverse striae, even in their 
concealed anterior part, but the posterior half is more or less regularly 
marked with numerous very delicate and long longitudinal striae. Trans- 
verse suture shallow but obvious all round the somite. Metazonites 
