Sarcina lutea Schroeter

Habitat.—Air, soil, water, skin surfaces.

Experimental vectors.Blatta orientalis, Italy (Cao, 1906): From intestinal contents.

† Sarcina symbiotica Pribram

Habitat.—Oöthecae of Blatta orientalis and/or Blattella germanica, Germany (Gropengiesser, 1925): It was described as "eine gelbe Sarcina"; Pribram (1933) named the organism.

Sarcina ventriculi Goodsir

Habitat.—Garden soil, dust, mud; isolated from a diseased stomach.

Natural vectors.Blatta orientalis, Poland (Nicewicz et al., 1946): From intestinal tract.

Sarcina sp.

Natural and experimental vectors.Periplaneta americana, U.S.A. (Gier, 1947): Organism not pathogenic to the cockroach when injected.