Fig. 4From: Brooding in Psolus patagonicus (Echinodermata: Holothuroidea) from Argentina, SW Atlantic OceanPsolus patagonicus. a Light micrographs of histological sections of ovaries; note the presence of oocytes (Oc). b Light micrographs of histological sections of testes, with different stages of spermatogenesis, including some spermatozoa (Spz)Back to article page