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Benthodytes marianensis, a new species of abyssal elasipodid sea cucumbers (Elasipodida: Psychropotidae) from the Mariana Trench area
Li, Ya-Nan; Xiao, Ning2; Zhang, Lv-Ping; Zhang, Haibin
2018
Source PublicationZOOTAXA
ISSN1175-5326
Volume4462Issue:3Pages:443
AbstractBenthodytes marianensis sp. nov., is described from the Mariana Trench at the depth of 5567 m. This is the thirteenth species in Benthodytes Theel, 1882. The new species has a broad brim around the body, dark violet skin, 9 pairs of large dorsal papillae with other papillae of equal or smaller size situated elsewhere, forming two zigzag rows, and some minute papillae scattered around the anterior region. Body wall ossicles are rods, crosses with three or four arms and central apophyses, and crosses of an unusual type. Crosses with four arms and central bipartite, tripartite and tetrapartite apophyses and peculiar cross-shaped ossicles with high apophyses ending in two horizontal arms are present in the dorsum. Large rod-shaped ossicles with bipartite apophyses and crosses with three or four arms and rudimentary apophyses are present on the ventrum. B. marianensis is morphologically most similar to B. incerta, but it is distinguished from B. incerta by the number and arrangement of dorsal large papillae, the broad brim and details of ossicle morphology. The phylogenetic analyses based on (16S, COI) and nuclear genes (H3) all confirm the morphological identification.
DepartmentLMB
Keyworddeep-sea holothurians new species Mariana Trench abyssal zone phylogenetic analysis
Document Type期刊论文
Identifierhttp://ir.scsio.ac.cn/handle/344004/17643
Collection中科院海洋生物资源可持续利用重点实验室
Affiliation1.Chinese Acad Sci, Inst Deep Sea Sci & Engn, Sanya 572000, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100039, Peoples R China
3.Chinese Acad Sci, Inst Oceanol, Qingdao 266071, Peoples R China
4.Chinese Acad Sci, South China Sea Inst Oceanol, Key Lab Harine Bioresources Sustainable Utilizat, Guangzhou 510301, Guangdong, Peoples R China
Recommended Citation
GB/T 7714
Li, Ya-Nan,Xiao, Ning,Zhang, Lv-Ping,et al. Benthodytes marianensis, a new species of abyssal elasipodid sea cucumbers (Elasipodida: Psychropotidae) from the Mariana Trench area[J]. ZOOTAXA,2018,4462(3):443, 450.
APA Li, Ya-Nan,Xiao, Ning,Zhang, Lv-Ping,&Zhang, Haibin.(2018).Benthodytes marianensis, a new species of abyssal elasipodid sea cucumbers (Elasipodida: Psychropotidae) from the Mariana Trench area.ZOOTAXA,4462(3),443.
MLA Li, Ya-Nan,et al."Benthodytes marianensis, a new species of abyssal elasipodid sea cucumbers (Elasipodida: Psychropotidae) from the Mariana Trench area".ZOOTAXA 4462.3(2018):443.
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