Observations on some Tasmanian fishes : Part XXV

Abstract

Five species are for the first time recorded from Tasmania; in each case some observations are made on the material, the chief points commented on here noted in parentheses. CHAULIODIDAE - Chauliodus sloani (dentition, general features): IDIACANTHIDAE - Idiacanthus fasciola (specimen from gut of Hyperoglyphe antarctica); I. niger (type locality of synonymic I. aurora, Macquarie Island, part of a Tasmanian municipality): EMBIOTOCIDAE - Diretmus argenteus (juvenile characters): CARANGIDAE - Trachurus mccullochi (key to Tasmanian carangids): ANTHIIDAE - Hypoplectrodes nigrorubrum (additions to, revision of, published accounts, key to Tasmanian anthiids). Observations are made also on the following species:- MACROURIDAE - Coelorinchus mortoni (new material of little-known species); Lepidorhynchus denticulatus (food of Rexea solandri, abnormal spinous structure); Macruronus novaezelandiae (fluviatile example): SYNGNATHIDAE - Solegnathus fasciatus (sex dimorphism, relative growth, table of dimensions); Stigmatophora argus (comparison with published data). Syngnathus phillipi (proportions): SPHYRAENIDAE- Austroluzza novaehollandiae (food of seal, proportions): SCOMBRIDAE - Gasterochisma melampus (additional Tasmanian record): ANTHIIDAE - Anthias pulchellus (second Tasmanian record, extension of extant accounts). Caesioperca rasor (examination of 11 examples, table of dimensions); Caesioperca lepidoptera (additions to published accounts); Callanthias allporti (additions to, revision of, published descriptions): ECHENEIDAE- Remora remora (comparison with larger examples reported on earlier). In the case of several species the existence of one or both of two interesting form patterns has been examined: (a) length of head, length to vent, standard length are found to be collinear in a loglog plot on integral numbers, (b) the lengths of spines and rays, in one or more sets, are found to yield a linear graph when plotted on a loglog grid against their serial (or reverse serial) numbers.