Topic
Stygotantulus
About: Stygotantulus is a research topic. Over the lifetime, 3 publications have been published within this topic receiving 69 citations.
Papers
TL;DR: A new genus of Tantulocarida, Stygotantulus, is described based on material from an anchialine pool on Lanzarote, Canary Islands, and is distinguished by the presence of 7 abdominal somites in the tantulus larva.
Abstract: A new genus of Tantulocarida, Stygotantulus, is described based on material from an anchialine pool on Lanzarote, Canary Islands. It is the most primitive tantulocarid known and is ectoparasitic on representatives of at least two families of harpacticoid copepods. It is distinguished by the presence of 7 abdominal somites in the tantulus larva. The musculature of the penis on trunk somite 7 of the male suggests that it is derived by modification of the seventh thoracopods. The importance of trunk somite numbers in maxillopodan systematics is reexamined and an attempt is made to apply the concept of homology to the developmental processes determining somite numbers. The classification of the Crustacea, including the Tantulocarida, proposed by Starobogatov (1986), is criticized and the validity of the developmental-functional concept of the prototagma, as used by Starobogatov, is refuted. A new scheme of phylogenetic relationships among seven major maxillopodan groups is presented.
60 citations
TL;DR: Nipponotantulus is placed in the Basipodellidae on account of the male trunk sac formation and both the setation and segmentation of the thoracopods, probably closest to Stygotantulus, but differs in the absence of a medial endite onThoracopod 1, the number of lamellae on the abdomen and the modified medial setAE on the caudal ramus.
Abstract: Several life-cycle stages of a new genus of Tantulocarida (Crustacea: Maxillopoda), parasitic on three orders of copepods, are described from Okinawa, South Japan. This is the first record of a tantulocaridan on cyclopoid and calanoid hosts. Nipponotantulus heteroxenus n. gen., n. sp. was also found on at least four families of harpacticoid copepods (including both interstitial and epibenthic species), indicating its low level of host specificity. Nipponotantulus is placed in the Basipodellidae on account of the male trunk sac formation and both the setation and segmentation of the thoracopods. It is probably closest to Stygotantulus with which it shares the structure of the sixth thoracopod, but differs in the absence of a medial endite on thoracopod 1, the number of lamellae on the abdomen and the modified medial setae on the caudal ramus.
9 citations
1 Jan 1989
TL;DR: A new genus of Tantulocarida, Stygotantulus, was described based on material from an anchialine pool on Lanzarote, Canary Islands.
Abstract: A new genus of Tantulocarida, Stygotantulus, is described based on material from an anchialine pool on Lanzarote, Canary Islands. It is the most primitive tantulocarid known and is ectoparasitic on representatives of at least two families of harpacticoid copepods. It is distinguished by the presence of 7 abdominal somites in the tantulus larva. The musculature of the penis on trunk somite 7 of the male suggests that it is derived by modification of the seventh thoracopods. The importance of trunk somite numbers in maxillopodan systematics is reexamined and an attempt is made to apply the concept ofhomology to the developmental processes determining somite numbers. The classification of the Crustacea, including the Tantulocarida, proposed by Starobogatov (1986), is criticized and the validity of the developmental-functional concept of the prototagma, as used by Starobogatov, is refuted. A new scheme of phylogenetic relationships among seven major maxillopodan groups is presented.
3 citations
Related Topics (5)
Performance Metrics
| Year | Papers |
|---|---|
| 1994 | 1 |
| 1989 | 2 |