Investigations on Cetacea (1979)
Two species of dolphin inhabit the Changjiang (Yangtze): Lipotes vexillifer MILLER, 1918 (known as Baiji in Chinese) and the Finless porpoise, Neophocaena asiaeorientalis PILLERI and GIHR, 1972. Although quite a…
Regression of the optic system in the Changjiang (Yangtze) finless porpoise (Neophoceana asiaeorientalis) as a result of lack of light
Chen, P.; Shao, Z.; Pilleri, G.
Investigations on Cetacea (1980)
(...) The research shows that the finless porpoise of the Changjiang (Yangtze river) presents an atrophy ofthe entire optic system - eye and eye muscle nerves, optic nerve, optic pathways.…
Neophocaena phocaenoides and Neophocaena asiaeorientalis: Taxonomical differences
Pilleri, G.; Chen, P.
Investigations on Cetacea (1980)
The Chinese finless porpoise of the Changjiang river, Neophocaena asiaeorientalis (PILLERI and GIHR, 1972) presents a taxonomic entity which differs from N. phocaenoides (G. CUVIER, 1829) of south and south-west…
Pharurus asiaeorientalis new species, Metastrongylid nematode, parasite of Neophocaena asiaeorientalis (Phocoenidae, Cetacea)
Petter, A. J.; Pilleri, G.
Investigations on Cetacea (1982)
In the course of a dissection of a cetacean belonging to the species Neophocaena asiaeorientalis, caught in the Changjiang (middle and lower reaches of the Yangtze river), nematodes were found…
The brain of the Chinese finless porpoise Neophocaena asiaeorientalis (Pilleri and Gihr, 1972): 1. Macroscopic anatomy
Pilleri, G.; Chen, P.
Investigations on Cetacea (1982)
(...) in the present paper we should like to examine with the naked eye the anatomical structure of the brain of the Chinese finless porpoise. The specimens were prepared in…
The ambient noise in the environment of Sousa plumbea and Neophocaena phocaenoides (Cetacea) with special reference to the sounds of Johnius belangerii (Pisces, Sciaenidae)
Pilleri, G.; Kraus, C.; Gihr, M.
Investigations on Cetacea (1982)
In the Piti Mouth, a typical biotope of Sousa plumbea and Neophocaena phocaenoides in the Indus delta, the sounds produced by Johnius belangerii (Boro) and the rather weaker crustacean sounds…
Fenestration of the skull in some cetaceans
Pilleri, G.; Gihr, M.; Zijganov, V. V.; Kraus, C.
Investigations on Cetacea (1982)
One hundred and forty-three skulls of a total of 15 cetacean species belonging to the superfamiIies of the Platanistoidea, Monodontoidea and Delphinoidea presented usually symmetrically arranged perforation areas or lacunae…
Near field, interference, far field and rostrum structure in the echolocation system of cetaceans
Pilleri, G.; Gihr, M.; Kraus, C.
Investigations on Cetacea (1983)
This monograph may be regarded as an important supplement to the book »Echolocation in Whales and Dolphins» by Purves and Pilleri, published by the Academic Press, London, 1983. It contains…
Cytoarchitectonic studies of the cerebral cortex of the harbour porpoise, Phocoena phocoena (Linne, 1758)
Behrmann, G.
Investigations on Cetacea (1993)
The olfactory system of the harbour porpoise is reduced but has a function. The visual system of the harbour porpoise is badly developed, and its inferior to the one of…
Changes in click source levels with distance to targets: Studies of free-ranging white-beaked dolphins Lagenorhynchus albirostris and captive harbour porpoises Phocoena phocoena
Atem, Ana Carolina G.; Rasmussen, Marianne H.; Wahlberg, Magnus; Petersen, Hans C.; Miller, Lee A.;
Bioacoustics (2009)
Probably all odontocetes use echolocation for spatial orientation and detection of prey. We used a four hydrophone “Y” array to record the high frequency clicks from free-ranging White-beaked Dolphins Lagenorhynchus…