Zoogeographic Provinces Research Articles

The Family Pyramidellidae (Mollesca) from Northern Australia

This paper reviews for the first time the family Pyramidellidae from northern Australia. The area includes the Solanderian zoogeographical province, and part of the Dampierian province. All species, whether previously described or now proposed as new, are figured and discussed. The division of the family into three new subfamilies is also proposed. In all 150 species or probable species belonging to 40 genera are reviewed. Of the genera 15 are proposed as new, and of the species 90 are proposed as new, and seven are left specifically unnamed pending the acquisition of more material. A key to the subfamilies and Australian genera is provided.

Liotidae and allied molluscs from the Dampierian Zoogeographical Province

Liotidae and allied molluscs from the Dampierian Zoogeographical Province

Notas biométricas sobre a corvina-marisqueira, Micropogon furnieri (Desmarest, 1822) Jordan, 1884

The present paper has the objective of verifying the variability of the values of the main biometrie relations used in the identification of Micropogon furnieri (Desmarest, 1822) Jordan, 1884 and also of verifying the possibilities that this relations could be used in the separation of the independent populations that live in the Uruguayan district of the Argentinian zoogeographic province and in the transition zone between this last one and the south Brazilian zoogeographic province. Three fishing areas were examined: area I - in between the latitudes of 29o30'S and 31o30'S, related to the mouth of the Tramandai River; area II - in between the latitudes of 31o30'S and 33o00'S, related to the mouth of the Grande River; area III - in between the latitudes of 35o00'S and 36o30'S, related to the mouth of the La Plata River. The conclusions resulting from the study are: 1 - The relations between the total length and any of the other elements (total weight, standard length, maximum height, head length, snout length, eye diameter and intestine length), with reference to the sex and fishing areas and inside the limits of total length variation from 34 to 60 cm, extremes included, do not allow the acceptance of the existence of independent populations in the different fishing areas; 2 - The relation total length/total weight, independent of the sex and fishing areas and inside the limits of total length variation from 34 to 60 cm, extremes included, shows and almost uniform increase of the total weight from 410 to 2,310 g; 3 - Independent of the sex and fishing areas, and inside the limits of the total length variation from 34 to 60 cm, extremes included, can be observed the following amplitudes of variation expressed as percentage of total length and corresponding to each other biometric clement, as standard lenght - from 83 to 87%, maximum height - from 22 to 28%, head length - from 24 to 28%, snout length - from 8 to 11%, eye diameter - from 3 to 5%, intestine length - from 110 to 225%.

Corrigenda - The Family Triphoridae (Mollusca) from Northern Australia; also Triphoridae from Christmas Island (Indian Ocean)

This is the first comprehensive study of the family Triphoridae (Molluscs) from northern Australia, which comprises the Solanderian and Dampierian zoogeographical provinces and, if the Queensland east coast be accepted as a separate province, the Banksian also. In all 101 species, divided into 17 genera, are figured and described, of which 91 species and 11 genera are proposed as new. In a separate section 14 species, divided into 10 genera, from Christmas Island in the Indian Ocean are described and figured, all the species and two genera being proposed as new. The Introduction includes a review of the literature and previous work, details of the proposed classification, and a key to existing genera.

A New Cassification of the Australian Marginellidae (Mollusca), with a Review of Species from the Solanderian and Dampierian Zoogeographical Provinces

A new classification is proposed for the Australian Marginellidae, both Recent and Tertiary. Most previous papers and all Australian papers have previously referred to the many species under one genus Marginella, though occasionally they have been subdivided into several sections without generic names. This subdivision has now been carried farther, and the approximately 200 -Australian species have been divided into 33 genera, of which 31 are new and 2 have been recently named from Japan. Of the 33 genera 22 are Recent and 20 Tertiary, and 9 Recent and Tertiary genera are considered congeneric. Figures are shown of all the type species, and a key is provided to those still living in Australian seas. The second part of the paper reviews and figures all the known species from the Solanderian and Dampierian Zoogeographical Provinces. Species number 41, of which 33 are proposed as new. Of these, 37 are Solanderian and 9 Dampierian. Five species are common to the Solanderian and Dampierian and one to the Solanderian and Peronian, and one ranges through the Maugean, Flindersian, Peronian, Solanderian, and Dampierian Provinces.

The Families Rissoinidae and Rissoidae (Mollusca) from the Solanderian and Dampierian Zoogeographical Provinces

This paper reviews taxonomically the whole, as far as is known, of the families Rissoinidae and Rissoidae (Mollusca) from northern Australia, with the addition of a number of species from Christmas Island in the Indian Ocean. The area covered includes two zoogeographical provinces, the Solanderian and the Dampierian. All species, known or proposed as new, are figured and discussed. In all, 167 species and subspecies belonging to 47 genera are reviewed, of which 131 species and sub-species and 27 genera are proposed as new. Of these, 123 come from the Solanderian Province and 37 from the Dampierian, and 6 Peronian species are now recorded from the Solanderian. Eight species were found common to the Solanderian and Dampierian. Eighteen species are described from Christmas I.

The Family Cerithiopsidae (Mollusca) from the Solanderian and Dampierian Zoogeographical Provinces

This paper reviews the Cerithiopsidae (Mollusca) from the Solanderian and Dampierian Zoogeographical Provinces in northern Australia. In all, 10 genera and 46 species or subspecies are described and figured, and of these six genera and 42 species or subspecies are proposed as new. A key to the Australian genera is also given, and the species from the Peronian and Maugeaa Provinces have been revised to fit in with the proposed classification.

The New South Wales Cancellariidae

Hedley in his Check List in 1918 recorded six species of this family as occurring in New South Wales. Since that time considerable revision in nomenclature has taken place, and some further material has come to hand. As descriptions and references to the family are very scattered in literature, the opportunity is now taken to bring them together, and to illustrate not only species new to science, but also all those which have already been described. It is felt that such papers are of great convenience to conchologists and form a base on which future work can be undertaken. The complete check list of species from the Peronian zoogeographical province will now read as follows: Sydaphera renovata Iredale, S. obnixa Iredale, S. anxifer Iredale, S. delicosa Laseron, S. scobina Hedley, Trigonaphera vinnula Iredale, T. interlaevis Laseron, Arizelostoma laseroni Iredale, Pepta stricta Iredale, Microsveltia recessa Iredale, Pallidonia simplex Laseron. All types, as well as specimens illustrated, are being presented to the Australian Museum, Sydney.

Some Characteristics of the Central Zoo-Geographical Province of the United States

Some Characteristics of the Central Zoo-Geographical Province of the United States