TY - JOUR
T1 - Two new species of Tubiluchus (Priapulida) from Japan
AU - Schmidt-Rhaesa, Andreas
AU - Panpeng, Supak
AU - Yamasaki, Hiroshi
N1 - Funding Information:
We thank Ken Fujimoto, Hideki Kaeriyama, and the captains and crews of RV Soyo-maru (National Research Institute of Fishery Science) for cooperation in collecting T. soyoae n.sp.; Daisuke Uyeno (Kagoshima University) and Tohru Naruse (University of the Ryukyus) for helping collect T. pardosi n.sp.; Hiroshi Kajihara and Keiichi Kakui (Hokkaido University) for making available the molecular laboratory at Hokkaido University; Renate Walter for her assistance at the SEM; and Fernando Pardos (Universidad Complutense de Madrid) for providing us the screenshots of a video for Tubiluchus cf. corallicola taken in Panama. This study was supported in part by a grant from Fujiwara Natural History Public Interest Incorporated Foundation and a KAKENHI Grant (15K18598) from the Japan Society for the Promotion of Science to HY.
Publisher Copyright:
© 2017 Elsevier GmbH
Copyright:
Copyright 2017 Elsevier B.V., All rights reserved.
PY - 2017/3/1
Y1 - 2017/3/1
N2 - Two new species of the genus Tubiluchus (Priapulida) are described from marine sediments in Japan. Both species were found to differ in a number of fine structural characters (the pharyngeal teeth, the buccal tube and the scalids) from previously described species. Tubiluchus soyoae n.sp. differs from other species by the structure of the male genital region, a size-increase of scalids from anterior to posterior and the structure of scalids in the first ring. There are no anterior buccal papillae. Pharyngeal teeth possess the usual two combs and those of the anterior ring possess an additional third comb which is unknown from other species. Intraspecific variability of 18S rDNA and COI sequences was low (0.17% and 0.76%, respectively), but interspecific variability of 18S rDNA was 1.43–3.32% within the genus. Tubiluchus pardosi n.sp. differs from other species by the fine structure of scalids, in particular the division into a basal part with smooth cuticle and a distal part with fine cuticular hairs. Further differences are in the structure of the pharyngeal teeth in the anterior ring, the transition between pectinate teeth and fimbrillae and in the structure of the buccal tube.
AB - Two new species of the genus Tubiluchus (Priapulida) are described from marine sediments in Japan. Both species were found to differ in a number of fine structural characters (the pharyngeal teeth, the buccal tube and the scalids) from previously described species. Tubiluchus soyoae n.sp. differs from other species by the structure of the male genital region, a size-increase of scalids from anterior to posterior and the structure of scalids in the first ring. There are no anterior buccal papillae. Pharyngeal teeth possess the usual two combs and those of the anterior ring possess an additional third comb which is unknown from other species. Intraspecific variability of 18S rDNA and COI sequences was low (0.17% and 0.76%, respectively), but interspecific variability of 18S rDNA was 1.43–3.32% within the genus. Tubiluchus pardosi n.sp. differs from other species by the fine structure of scalids, in particular the division into a basal part with smooth cuticle and a distal part with fine cuticular hairs. Further differences are in the structure of the pharyngeal teeth in the anterior ring, the transition between pectinate teeth and fimbrillae and in the structure of the buccal tube.
UR - http://www.scopus.com/inward/record.url?scp=85016078451&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85016078451&partnerID=8YFLogxK
U2 - 10.1016/j.jcz.2017.03.004
DO - 10.1016/j.jcz.2017.03.004
M3 - Article
AN - SCOPUS:85016078451
SN - 0044-5231
VL - 267
SP - 155
EP - 167
JO - Zoologischer Anzeiger
JF - Zoologischer Anzeiger
ER -
