C. luzonicus. C. catus. C. verrucosus. C. acutangulus. C. mindanus. C. Japonicus. C. pusio. C. columba. C. madurensis. C. nemocanus. C. cancellatus. C. fusiformis. C. cærulescens. C. Aurora. C. Taitensis. C. Adansonii. C. tinianus. C. Portoricanus. C. crocatus. C. strigatus. C. glans. C. mitratus. C. nussatella. C. aulicus. C. auratus. C. colubrinus. C. clavus. C. auricomus. C. omaria. C. rubiginosus. C. pennaceus. C. prælatus. C. panniculus. C. cervus. C. stercus-muscarum. C. Timorensis. C. nimbosus. C. dux. C. tendineus. C. præfectus. C. melancholicus. C. archiepiscopus. C. canonicus. C. episcopus. C. abbas. C. legatus. C. textilis. C. pyramidalis. C. gloria-maris. C. Australis. _C. textilis._ The embroidered Cone. Pl. 31, fig. 2. Species ovate, slightly elongated; the spire rather projecting, pointed, not coronated. _C. imperialis._ The imperial Cone. Species conic, spire coronated, projecting, or flat. _C. striatus._ The striated Cone. Species oblong-ovate, gibbous, not coronated, clouded and strongly striated transversely. _C. generalis._ The general Cone. Species conic, spire projecting, not crowned with tubercles; colour reddish brown, or clouded with orange and interrupted fillets. _C. mustelinus._ The Weasel Cone. Pl. 31, fig. 1. Species with base sub-truncated; spire channelled and banded with orange spots; body whitish, encircled in the middle by orange-spotted bands. FAMILY XXI. NAUTILACEA. Two genera. 1. Spirula. One species.