1990•Journal of Crustacean BiologyRequires access

PSEUDOJANIRA INVESTIGATORIS, NEW SPECIES, FROM SOUTHERN AUSTRALIA: SECOND SPECIES IN THE PSEUDOJANIRIDAE (ISOPODA: ASELLOTA) WITH NEW MORPHOLOGICAL INFORMATION AND INTERPRETATIONS

Gary C. B. Poore, Jean Just

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Abstract

Pseudojanira investigatoris, new species, differs from P. stenetrioides, the only other species in the Pseudojaniroidea, in proportions and setation of the body, mouthparts, pereiopods, and pleopods. The interaction of the penesandmale pleopods Iand 2insperm transferisdeduced. The spermatheca opens through a short cuticular organ into a furrow which it shares with the prospective oopore and stylet receptacle on the anteroventral surface of pereionite 5 of the preparatory female. The spermatheca attaches at a single point to the ovary. The spermatheca, cuticular organ, and stylet receptacle are lost in the molt to ovigerous female and only the enlarged oopore remains.

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What this paper is about

Pseudojanira investigatoris, new species, differs from P. stenetrioides, the only other species in the Pseudojaniroidea, in proportions and setation of the body, mouthparts, pereiopods, and pleopods. The interaction of the penesandmale pleopods Iand 2insperm transferisdeduced. The spermatheca opens through a short cuticular organ into a furrow which it shares with the prospective oopore and stylet receptacle on the anteroventral surface of pereionite 5 of the preparatory female. The spermatheca attaches at a single point to the ovary. The spermatheca, cuticular organ, and stylet receptacle are lost in the molt to ovigerous female and only the enlarged oopore remains.

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Available abstract

Pseudojanira investigatoris, new species, differs from P. stenetrioides, the only other species in the Pseudojaniroidea, in proportions and setation of the body, mouthparts, pereiopods, and pleopods. The interaction of the penesandmale pleopods Iand 2insperm transferisdeduced. The spermatheca opens through a short cuticular organ into a furrow which it shares with the prospective oopore and stylet receptacle on the anteroventral surface of pereionite 5 of the preparatory female. The spermatheca attaches at a single point to the ovary. The spermatheca, cuticular organ, and stylet receptacle are lost in the molt to ovigerous female and only the enlarged oopore remains.

Key concepts: Spermatheca, Arthropod mouthparts, Stylet, Biology, Receptacle, Isopoda, Anatomy, Crustacean

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PSEUDOJANIRA INVESTIGATORIS, NEW SPECIES, FROM SOUTHERN AUSTRALIA: SECOND SPECIES IN THE PSEUDOJANIRIDAE (ISOPODA: ASELLOTA) WITH NEW MORPHOLOGICAL INFORMATION AND INTERPRETATIONS — Research Paper | ScholarLens