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The World of Protozoa, Rotifera, Nematoda and Oligochaeta

Isochaeta

Family Tubificidae (ref. ID; 5939)

ref. ID; 1663

Dorsal and ventral setae different. Ventral setae bifurcate, dorsal setae bifurcate or mixture of two or three types. Four bundles of an indeterminate number each per segment. Worm usually reddish. Coelomocytes sparse or absent. Without gills. Single solid prostates attached to atria by narrow stalk. Vasa deferentia as long as or longer than atria. Tubular atrai only slightly wider than vasa deferentia. One rare species in Lake Tahoe. (ref. ID; 1663)
  1. Isochaeta hamata (ref. ID; 5939)
  2. Isochaeta nevadena (ref. ID; 5939)