FIGURE 73. Jassa staudei Conlan, 1990 in Jassa (Crustacea: Amphipoda): a new morphological and molecular assessment of the genus

FIGURE 73. Jassa staudei Conlan, 1990. Variation in thumb length relative to body length in thumbed males from four populations collected in June on the Pacific coast of North America, ordered by latitude. West side of Wouwer Island, British Columbia, 27 June 1976, E. L. Bousfield, coll., station B7, low water collection, bedrock, Phyllospadix, kelp, sponges, ~12 °C, ~32+ psu, 1976-157 (CMN). Friday Harbor Laboratories, San Juan Island, Washington, west pressure head tank for marine lab aquaria, 3 June 1986, C. Staude, coll., IZ1984-175 (CMN). Shelter Cove, Point Delgada, California: 5 June 1986, P. Shaw, coll., formalin wash of open coast shallow subtidal algae and bryozoans (Aglaophenia Lamouroux, 1812),>33psu, rocky coast, strong surge. Albion Cove, California, 29 June 1978, J.R. Chess, coll., airlift pump of fouling community on rock substrate, 20 m depth, IZ1986-071 (CMN). Linear regression assumptions passed for the adult major form males at Friday Harbor and Point Delgada. Linear regression statistics: Friday Harbor: Major form, thumb length = -0.587+ 0.168 x body length, r2 = 0.893, n = 7; Point Delgada: Major form, thumb length = -0.489 + 0.168 x body length, r2 = 0.885, n = 8.Published as part of Conlan, Kathleen E., Desiderato, Andrea & Beermann, Jan, 2021, Jassa (Crustacea: Amphipoda): a new morphological and molecular assessment of the genus, pp. 1-191 in Zootaxa 4939 (1) on page 121, DOI: 10.11646/zootaxa.4939.1.1, http://zenodo.org/record/458062