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Show 450 MR. PERCV I. LATHY O N [Mar. 15, portal system). In Iguana there are two such veins and in Tiliqua three. (G) Iguana differs from both Tiliqua and Varanus in possessing dorsal parieto-hepatic veins which arise from both sides of the vertebral column. In Tiliqua and Varanus only the right vein is present, which enters the liver close to where it is perforated posteriorly by the vena cava. In Tiliqua this vessel receives intercostal branches (?) from the left side as well as from the right which cross the vertebral column superficially; these are not present in Varanus. The left dorsal parieto-hepatic vein of Iguana reaches the liver by way of a venous plexus on the stomach and the gastro-hepatic veins. (7) The lateral abdominal vein, from where it joins the root of the anterior abdominal to a point anterior to this where it becomes defective, is very short in Iguana as contrasted with Tiliqua. In none of the types which I have examined is this vein continuous from one end of the body to the other as it appears to be (according to Hochstetter) in Lacerta. (8) Iguana is to be distinguished from Tiliqua (and possibly from Varanus) by the more complex system of suprarenal portals; there are two sets of these vessels instead of only one. (9) The two posterior of the oviducal veins in Iguanet are connected each of them with one of the afferent veins of the kidney. 5. A Contribution towards the Knowledge of the Lepi-doptera- Rhopaloeera of Dominica, B.W.I. By P E R CY I. L A T H Y , F.Z.S., F.E.S. [Received March 5, 1901.] [The complete account of the new species described in this communication appears here; but as the names and preliminary diagnoses were published in the ' Abstract,' such species are distinguished by being underlined.-EDITOR.] In the ' Proceedings' of the Zoological Society for 1884 Messrs. Godman and Salvin give a list of the Butterflies collected in Dominica by Mr. G. French Angas. This list contains 27 species, three being described as new, one undetermined, since described by the same authors (P.Z.S. 1896, p. 519), and one treated as identical with a Cuban form through want of 'material. In the present paper I am able to add 12 species to the list,' three of which are new to science, and to differentiate between the Cuban and Dominican Hesperid. I am indebted to Messrs. Agar and Allport for the material received. PYRAMEIS CARDUI. Papilio cardui Linn. Syst. Nat. i. p. 774. Two very bad specimens of this cosmopolitan species were obtained. x |