Description

Description (Fig. 2) Based on 1 male and 1 female specimen and 1 metasoma (female) from BMNH 1946.5.14.121 - 122. Male. Length of trunk (deformed) 4.0. Proboscis cylindrical, situated at angle to trunk axis, 0.68 long, 0.15 wide. Proboscis armament consists of 20 longitudinal rows of 16 - 17 hooks per row. Length of first 9 (10) hooks – blade 32 - 42 µm, root 34 - 37 µm; length of next 3 hooks – blade 25 - 27 µm, root 25 - 34 µm; length of last 3 hooks – blade 22 µm, root 15 - 20 µm. Neck trapezoidal, 0.18 long, 0.13 - 0.22 wide. Proboscis receptacle 0.6 long, 0.2 wide. Lemnisci 1.3 (1.4) long, 0.1 - 0.11 wide. Testes not clearly seen; anterior testis at c. 1.12 from tip of proboscis receptacle. Length of cement glands c. 0.80. Female. Trunk elliptical, oval to fusiform, 4.4 - 5.6 long, 1.9 - 2.2 wide. Proboscis cylindrical, situated at angle to trunk axis, 0.76 long, 0.19 wide. Proboscis armament consists of 17 longitudinal rows of 15 - 16 hooks per row. Length of first 9 (10) hooks – blade 37 - 49 µm, root indistinct; length of next 2 - 3 hooks – blade 29 - 32 µm, root indistinct; remaining 4 hooks could not be measured. Neck withdrawn. Proboscis re- ceptacle and lemnisci indistinct. Genital pore at 0.2 from end of trunk. Eggs elongateoval, shuttle-shaped, with polar prolongations, 93 - 115 × 20 - 39 µm.

Common Names

Taxonomic Hierarchy

Kingdom: Animalia

Phylum: Acanthocephala

Class: Palaeacanthocephala

Order: Polymorphida

Family: Plagiorhynchidae

Genus: Plagiorhynchus

Species: Plagiorhynchus odhneri Lundström, 1942