Dynamenella sheareri (Hatch, 1947)

Khalaji-Pirbalouty, Valiallah & Gagnon, Jean-Marc, 2023, Illustrated catalogue of sphaeromatoid isopods (Crustacea, Malacostraca) in the Canadian Museum of Nature (CMN), Zoosystematics and Evolution 99 (2), pp. 375-389 : 375

Dynamenella sheareri (Hatch, 1947)

Fig. 2C

Dynamene sheareri Hatch, 1947: 164, 262, fig. 173; George and Strömberg 1968: 246-248, pl. 2, fig. 9.

Dynamenella sheareri .- Schultz,1969: 123, fig. 174; Harrison and Holdich 1982: 90.

Note.

The true generic status of this species is still undetermined.

Type locality.

Coos Bay, Oregon.

Material examined.

Canada. 6 ♀♀ (up to 3 mm) , 1 ♂ (3.8 mm); British Columbia, Renfrew Land Distr., Port Renfrew ; 1 Aug. 1970; CMNC 1990-0069 . 5 ♀♀ (up to 3.5 mm), 2 ♂♂ (4 mm), British Columbia, Vancouver Island, Barclay Land Distr. , Bordelais Islets; 9 Aug. 1975; CMNC 1990-0070 .

Remarks.

Dynamenella sheareri cannot be a Dynamenella because of the following characters: having a single pleonal suture running to posterior margin (instead of two); penial process more fused, not basally swollen; appendix masculina is evenly slender and long, not "flask shaped."

Genus Dynoides Barnard, 1914

Figures

Figure 2. Dynamene dilatata Richardson, 1899, female, (CMNC 1991 - 2567). A. Lateral view; B. Dorsal view; C. Dynamenella sheareri (Hatch, 1947), male, (CMNC 1990 - 0070); D. Dynoides canadensis Khalaji-Pirbalouty & Gagnon, 2021, (CMNC 1985 - 0667 b). Exosphaeroma gigas (Leach, 1818), male, (CMNC 1990 - 0090); E. Dorsal view; F. Lateral view. Exosphaeroma rhomburum (Richardson, 1899), male, (CMNC 1991 - 2559); H. Exosphaeroma russellhansoni Wall, Bruce & Wetzer, 2015, male, (CMNC 1984 - 1465).