Mitromorpha dorcas is a type of sea snail that does not release its eggs and sperm into the water like many other marine animals. It is a non-broadcast spawner. Its life cycle also doesn't include the trochophore stage, which is the free-swimming early stage common among the marine creatures.[2]
Kuroda, T.; Habe, T.; Oyama, K. (1971). The Sea Shells of Sagami Bay. Maruzen Co., Tokyo. xix, 1–741 (Japanese text), 1–489 (English text), 1–51 (Index), pls 1–121
Kosuge S. (1980) Description of new species of the genus Mitrella (Pyrenidae, Gastropoda). Bulletin of the Institute of Malacology, Tokyo 1(3): 46, pl. 9
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