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. 



