Polyipnus

Abstract: Early Miocene (Otaian and Altonian) sediments of the Parengarenga Group crop out along the northern and, less extensively, the southern shores of Parengarenga Harbour, Northland. A number of localities within and just below the Paratoetoe Formation have otoliths (calcareous secretions of the middle "ear") of teleost The fauna is moderately diverse (55 species in 32 families) with the following families dominant in terms of abundance and diversity: Congridae (2 taxa), Sternoptychidae (2), Myctophidae (7), Moridae (4), Bregmacerotidae (1), Macrouridae (7), Hoplichthyidae (1), and Gobiidae (1). 11 new species are described:Congridarum grantmackiei, Polyipnus plebeius, Symbolophorus prionotus, Bregmaceros prosoponos, Macrourida'rum macmillani, Sirembinorum obesus, Hoplichthys multistriatus, Apogonidarum asciforme, Gerridarum lacunum, Gobiidarum pectenoides, and Paradiplospinus aichmeus. A number of other speciesmay also be new but are left in open nomenclatureat this stage(e.g.,Physiculus sp.1). Some taxa con...

Abstract: Recent pelagic and benthic trawling activities over the Brazilian continental slope between 11° and 23°S captured nine species representing five genera of the stomiiform family Sternoptychidae. Among these, three species are new records for Brazilian waters: Sternoptyx pseudodiaphana, Argyripnus atlanticus, and Polyipnus sp. The known distributions of Argyropelecus aculeatus and Maurolicus stehmanni along the Brazilian coast are extended northward to 13°S and 16°S, respectively, while that of Sternoptyx diaphana is extended southward to 13°S. Argyropelecus hemigymnus, Argyropelecus sladeni, and Sternoptyx pseudobscura were rarely caught (n=2–16). A key to the western South Atlantic species of Sternoptychidae is provided.

Abstract: A new species of the teleostean family Sternoptychidae, Polyipnus notatus n. sp. , is described based on material collected mainly off Taiwan in the South China Sea. The new species is most similar to P. triphanos , based on the presence of a single posttemporal spine, lack of scale spination, and the second and third ACA (=supra-anal) photophores elevated relative to the first and connected to each other in a common organ. These characters typify other members of the P. asteroides species group that occur in various tropical to temperate ocean basins. Based on a limited sample of 27 specimens, P. notatus (maximum observed size 30.7 mm SL) appears to be smaller than most other congeners. It is also characterized by an unusual lateral pigment bar, which is narrow and distinctly triangular. Based on the material examined, the geographical distribution of the species appears to be restricted to the South China Sea and adjacent minor ocean basins.