Nudibranch Dorids from the Pacific Coast of Costa Rica with the Description of a New Species

摘要: We describe a new species of opisthobranch dorid, Atagema notacristata sp. nov., from Costa Rica and Panama, redescribe four dorids the Pacific Coast Rica. is distinctive among described taxa in having unique combination following features: light brown background color with no conspicuous spots, compound tubercles caryophyllidia uniformly arranged on dorsum, short rhinophore sheaths, conical oral tentacles, five tripinnate branchial leaves, three lobes, lobate blood gland. Geitodoris mavis (Marcus Marcus, 1967), Doris immonda (Risbec, 1928), pickensi Marcus 1967, tanya 1971, based material recently collected represents first record this Indo-Pacific Eastern Pacific.