Dorymenia troncosoi sp. nov. (Mollusca Solenogastres: Proneomeniidae), a new species from the South Shetland Islands (Antarctica)
Dorymenia troncosoi sp. nov. (Mollusca Solenogastres: Proneomeniidae), a new species from the South Shetland Islands (Antarctica)
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Dorymenia troncosoi sp.
DOI：
10.1007/s003000050318
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发表时间：
1998
期刊：
影响因子：
1.7
通讯作者：
L. von Salvini
中科院分区：
文献类型：
--
作者：
Ó. García;V. Urgorri;L. von Salvini
西班牙“BENTART’95”海洋考察队在南设得兰群岛（South Shetland Islands）利文斯顿岛（Livingston Island）附近的南极海域，在65 ~ 240 m的泥沙底部采集了5个螺螺鱼新种Dorymenia troncosoi sp. nov.)的小标本。该物种的特征是有一个带有四个囊袋（一个背囊，两个外侧囊和一个腹侧囊）的pallial腔，通过一个短管进入产卵管的精囊，每排有9-11个齿（1个中央齿和4-5个外侧齿，大小相同），交配针状体的末端具有四角星形状的横截面，腹部有针状体。这些特征使这一种区别于该属的其他种，特别是区别于最相似的Dorymenia prounda。
Abstract During the Spanish oceanographic expedition BENTART '95, carried out in Antarctic waters off Livingston Island (South Shetland Islands), five small specimens of a new species of Solenogastres-Cavibelonia, Dorymenia troncosoi sp. nov., were collected at a depth of 65–240 m on a silt bottom. The species is characterized by the presence of a pallial cavity with four pouches (a dorsal, two lateral and a ventral pouch), seminal receptacles that open into the spawning ducts through a short duct, radula having 9–11 teeth per row (1 central and 4–5 lateral, all the same size), the end of the copulatory spicules having a cross-section in the shape of a four-pointed star, and abdominal spicules present. These characteristics separate this species from other species of the genus, particularly from Dorymenia profunda, which is the most similar.