Two new species and a new genus of Calloporidae (Bryozoa: Cheilostomata) from the Southwest Atlantic.
The family Calloporidae occupies a basal position in the classification of the Cheilostomata, the relatively simple calloporid morphology seeming to be the basic pattern for the adaptive radiation of cheilostome bryozoans. The ovicells of the Calloporidae may be formed by the maternal zooid or the distal zooid, which can be an autozooid, a vicarious avicularium or a kenozooid. Examination of new calloporid material from the southern Patagonian shelf revealed the existence of two new species and a new genus. Kenoaplousinafissurata gen. nov., sp. nov. is characterized by its distinctive kenozooidal ooecium. The new genus is also deemed to include Aplousina grandipora Moyano, an allied species from the Chilean continental slope. Alderina simplicissima sp. nov., is also described from the Magellanic region.
Museo Argentino de Ciencias Naturales, Angel Gallardo 470, Ciudad Autónoma de Buenos Aires C1405DJR, Argentina. lgappa@macn.gov.ar
Juan López
JL
Gappa
María G
MG
Liuzzi
D063147:Animal Distribution; D000825:Animal Structures / Q000033:anatomy & histology / Q000254:growth & development; D000818:Animals; D049628:Body Size; D002013:Bryozoa / Q000033:anatomy & histology / Q000145:classification* / Q000254:growth & development; D009929:Organ Size