Bergamo Gilberto, Carrerette Orlemir, Zanol Joana, De Matos Nogueira JoÃo Miguel
Laboratório de Poliquetologia (LaPol), Departamento de Zoologia, Instituto de Biociências, Universidade de São Paulo, Rua do Matão, travessa 14, n. 101, 05508-090, São Paulo, SP, Brazil.
Zootaxa. 2018 Nov 14;4521(3):376-390. doi: 10.11646/zootaxa.4521.3.4.
Members of one species of Leodice Lamarck, 1818, one species of Lysidice Lamarck, 1818, and another of Palola Gray in Stair, 1847 were found among material from rhodolith beds, collected off the states of Paraíba and Pernambuco, northeastern Brazilian coast. Of those species, one is new to science and the other two are new records for the state of Pernambuco, although their occurrence on neighbouring areas was already known. Leodice calcaricola sp. nov. resembles morphologically L. miurai (Carrera-Parra Salazar-Vallejo, 1998) as members of both species share similar body size, moniliform prostomial appendages, similar numbers of branchial filaments (1-3 per branchia), and, especially, by having falcigers with bidentate blades on anterior chaetigers, and tridentate on posterior ones. These species differ, however, since specimens of L. calcaricola sp. nov. have distinctly shorter antennae and palps, homodont and heterodont pectinate chaetae, three types of aciculae and two subacicular hooks per midbody parapodium. The other two species which members were found on the rhodolith beds are Lysidice cf. unicornis (Grube, 1840) and Palola brasiliensis Zanol, Paiva Attolini, 2000. We describe herein new species to science and provide a redescription for L. cf. unicornis because the Brazilian specimens of this species have never been formally described.
在巴西东北海岸帕拉伊巴州和伯南布哥州近海采集的钙藻层材料中，发现了1818年拉马克描述的一种Leodice属物种、1818年拉马克描述的一种Lysidice属物种以及1847年斯泰尔描述的另一种Palola属物种。在这些物种中，一个是科学上新发现的物种，另外两个是伯南布哥州的新记录物种，尽管它们在邻近地区的出现情况已经为人所知。新物种Leodice calcaricola sp. nov.在形态上类似于L. miurai（卡雷拉 - 帕拉·萨拉查尔 - 巴列霍，1998年），因为这两个物种的成员具有相似的体型、念珠状的口前附肢、相似数量的鳃丝（每个鳃1 - 3根），特别是，它们在前部刚节上都有具双齿叶片的镰状刚毛，而在后部刚节上有具三齿的刚毛。然而，这些物种有所不同，因为Leodice calcaricola sp. nov.的标本触角和触须明显更短，有同齿和异齿栉状刚毛，每一中体疣足有三种类型的针状刚毛和两个亚针状钩。在钙藻层中发现的另外两个物种是Lysidice cf. unicornis（格鲁贝，1840年）和Palola brasiliensis Zanol、Paiva Attolini，2000年。我们在此描述科学上新物种，并对L. cf. unicornis进行重新描述，因为该物种的巴西标本从未被正式描述过。
