CONTRIBUTIONS TO A KNOWLEDGE OF SOUTH AFRICAN OLIGOCHAETA.—Part II

Abstract

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A Contribution Towards a Revision of the Aquatic Oligochaeta of Africa

“…The atrium in the single mature specimen, which was sectioned longitudinally, is quite short, j~st as in P. a/bus (Beddard 1896), and not bent into a V shape as in P. africanus (Goddard and Malan 1913b). The spermatheca is not quite so elongate as in the original description of P. africanus, where the ampulae reach XVIII or XIX, and the swelling on the junction of the ampulla and the duct (?produced by the penetration of the septum and hence more apparent than real) lies anterior to 14-15 not 16-17.…”

Reproductive strategies of the kangaroo leech, Marsupiobdella africana (Glossiphoniidae)

“…Others build nests for their young or carry eggs or young on their ventral surfaces. The ultimate step in this evolutionary trend is displayed by Marsupiobdella africana Goddard and Malan (1913) (Glossiphoniidae), where the parental leech transfers as many as 50 fertilized eggs from the female gonopore to its own ventral brood pouch, incubating them for over a four week period ( Van der Lande and Tinsley, 1976; Badets and Du Preez, 2014 ). This is a very effective form of parental care as the eggs and developing young are safe against predation.…”

New Phreodrilidae (Annelida: Clitellata) from Tasmanian estuaries

“…Finally, the type locality of Antarctodrilus niger (Beddard 1894) is given as Port Stanley, Falkland Island, by its original author, but Michaelsen (1900) expanded on this, giving the locality as "zwischen Algen in einem langsam fliessenden Bach" (among algae in a slow flowing brook). All other phreodrilids identified as A. niger (or its synonyms) are from inland streams and rivers (Beddard 1894, Goddard & Malan 1913, Brinkhurst 1966, 1982.…”

“…Finally, the type locality of Antarctodrilus niger (Beddard 1894) is given as Port Stanley, Falkland Island, by its original author, but Michaelsen (1900) expanded on this, giving the locality as "zwischen Algen in einem langsam fliessenden Bach" (among algae in a slow flowing brook). All other phreodrilids identified as A. niger (or its synonyms) are from inland streams and rivers (Beddard 1894, Goddard & Malan 1913, Brinkhurst 1966, 1982.The new species and other, unnamed, material described in this paper were collected from brackish reaches of estuaries in Tasmania. These were part of a collection of oligochaetes obtained during an extensive biological study of Tasmanian estuaries (Edgar et al 1998), which was placed at the second author's disposal.…”