PAPILIO DIMAS—_Jon. fig. pict. 1. tab. 23._ * * * * * This, like the preceding, is a species we have been enabled to determine from the Fabrician MS. and the drawings of Mr. Jones. Fabricius, it appears, was not entirely decided in his mind whether the two Papiliones figured by Cramer, plate 29 fig. E, under the name of Hyppason, and that in the same plate, fig. F, named Euristeus, ought in reality to be considered as appertaining to this species; and preferring the name of Dimas which had been previously given to it by Mr. Jones, he has described it under that name, allowing the references to Cramer, above quoted, to remain as synonyms. The Naturalist may rely with implicit confidence upon its being the Papilio Dimas of Jones and Fabricius. This is rather larger than the former, the general colour black: on the anterior wings, in the middle, is a large white spot, so situated upon the junction of the ribs that they pass distinctly through it and give the appearance of a spot cleft at the sutures. The sanguineous palmate spot on the posterior wings is six cleft: and besides this there is a small spot of red upon the scollops, between the dentations at the margin of the posterior wings. The colours and spots appear beneath as above, but only paler. Papilio Dimas is a native of Brazil, and bears a near affinity to Papilio Anchises. ------------------------------------------------------------------------ [Illustration: _28_ _London. Published by E. Donovan, & Mess.^{rs} Simpkin & Marshall, Jan. 1, 1823._ ] ------------------------------------------------------------------------ CONCHOLOGY. PLATE XXVIII. MALLEUS MACULATUS SPOTTED HAMMER SHELL, OR HOUND’S TONGUE. * BIVALVE. GENERIC CHARACTER. Shell subquivalve, rough, deformed, generally lengthened and lobed or hammer-shaped: beaks small and divergent. Hinge without teeth, a lengthened conic hollow situated under the beaks and traversing obliquely the facet of the ligament. A lateral slope or groove at the side of the ligament for the passage of the byssus or beard with which the animal is furnished. SPECIFIC CHARACTER. Shell curved, with a single somewhat straight abbreviated lobe at the base: reddish yellow, clouded, spotted and dotted with fuscous. MALLEUS MACULATUS: testa arcuata, lobo basis unico sub-recta abbreviato flavo-rufescente fusco nebulosa maculata punctisque. * * * * *