Chilton. — Crustacea from the Coast of Auckland. 265 Fig. 3. Side view of the head with the skin laid back, showing the branches of the external jugular vein. n. Nasal. t. Tympanic, o. Orbital. e.j. External jugular. Fig. 4. The arterial system of Hyla aurea (partly diagrammatic). (The dotted lines indicate the position of arteries that are hidden by muscles, &c. The carotid artery is made not to overlap the systemic arch, so to avoid confusing the diagram.) h. Heart. cu. Cutaneous artery. t. Truncus arteriosus. cm. Coeliaco-mesenteric. i. Carotid arch. d.a. Dorsal aorta. ii. Systemic arch. il. Iliac artery. Hi. Pulmo-cutaneous arch. Im. Lumbar artery. I. Lingual artery. cae. Cceliac artery. c. Carotid artery. m. Mesenteric artery. s. Subclavian artery. g. Gastric artery. oc Occipital artery. r. Renal arteries. o.c. Occipito-vertebral artery. gl. Carotid gland. pi. Pulmonary artery. Art. XXX.— Report of some Crustacea dredged off the Coast of Auckland. By Charles Chilton, M.A., D.Sc, F.L.S., Professor of Biology, Canterbury College, New Zealand. [Rend before the Philosophical Institute of Canterbury, 6th December, 1905.] Shortly after the Dunedin meeting of the Australasian Associa-tion for the Advancement of Science, some dredging was done off the coast of Auckland by Messrs. Hedley, Suter, and others. The small number of Crustacea that were taken were kindly handed over to me for identification by Mr. H. Suter, and the following report is the result. I have included one or two specimens sent to me later on by Mr. Suter, and some dredged early in 1905 off the Poor Knights Islands by Captain Bollons of the " Hinemoa." Most of the specimens were taken in the Hauraki Gulf at a depth of 25 fathoms, and there were only four taken outside Great Barrier Island in 120 fathoms — viz., a Callianassid, not identifiable ; Lyreidus tridentatus, De Haan ; Cirolana rossii, Miers ; and Ampelisca chiltoni, Stebbing. None of the species given below are new, though one or two of the Sphtvromidw, which I am unable to identify satisfactorily at present, may prove to be new species. There are, however, one or two interesting additions to our knowledge of the distri-bution of species already known, the most important being that of Lyreidus tridentatus, De Haan, which is now recorded from New Zealand for the first time, and belongs to a group of the Anomura — the Raninidea — hitherto unrepresented in the New Zealand fauna.