Second members of the harpacticoid genera Pontopolites and Pseudoleptomesochra (Crustacea, Copepoda) are new species from Korean marine interstitial

Karanovic, Tomislav; Cho, Joo‐Lae

doi:10.1007/s12526-017-0731-2

Cited by 6 publications

(4 citation statements)

References 56 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Furthermore, this genus has a six-segmented antennule in the female, and the most primitive two-segmented antennary exopod (Table 1). As pointed out by Karanovic and Cho [9], Pontopolites are isolated from two other genera by having one plated P5 in both sexes. Acuticoxa also has a similarly-shaped P5 in the female [4].…”

Section: Discussionmentioning

confidence: 92%

Doolia, A New Genus of Nannopodidae (Crustacea: Copepoda: Harpacticoida) from off Jeju Island, Korea

Lee

2019

Diversity

View full text Add to dashboard Cite

A new harpacticoid copepod is described from the waters off Jeju Island, Korea. This species displays a unique set of characteristics including a rostrum that is clearly demarcated from the cephalosome, a setular (spinular) row on the rostrum, a well-developed frill along the posterior margins of each body segment except for the cephalosome, long and cylindrical caudal rami, four segmented female antennules, paired genital apertures in the female, the absence of sexual dimorphism in legs P1–P4, and highly reduced P5 and P6 in the male. This combination of characteristics allocates the specimen to the family Nannopodidae Por, 1986, but the new species belongs to none of the extant genera within the family. A new genus, Doolia, is proposed. Nannopus is suggested as a sister taxon of the new genus based on shared plesiomorphic characteristics in the maxilliped, legs P1–P4, and P5. Doolia gen. nov. is the eighth genus of Nannopodidae, and an amended key for the genus is provided herein.

show abstract

Section: Discussionmentioning

confidence: 92%

Doolia, A New Genus of Nannopodidae (Crustacea: Copepoda: Harpacticoida) from off Jeju Island, Korea

Lee

2019

Diversity

View full text Add to dashboard Cite

show abstract

“…These two genera share the presence of anterior setules on the rostrum, the absence of geniculate distal elements on the antennary endopod, the uniramous mandibular palp, the non-prehensile P1 endopod, the short caudal rami and the shape of the sexually-dimorphic male P3. Karanovic and Cho (2018) noted that some species of both genera show different endopodal complements on the P3 between females and males, without any differences in segmentation. By contrast, the species of Nannopus display certain primitive characters, such as the presence of two abexopodal setae on the antennary allobasis (e.g.…”

Section: Relationships Amongst Clade Members With Coxal Outer Projections On the Thoracopodsmentioning

confidence: 99%

“…The sexual dimorphism of thoracopods is one of the most robust characters used to assess the phylogenic relationships between genera and between families because it facilitates comparison of the positions of homologue elements (such as setae or apophyses) of rami in females and males (Huys 1990;Huys and Kihara 2010). In this nannopodid clade, the known males tend to exhibit differences in morphology of the P3 endopod: (1) the male of Rosacletodes has a two-segmented P3 endopod with an elongate inner apophysis on enp-2, instead of a single seta as in the female (Pallares 1982); (2) all known males of the species of Huntemannia have an additional armature element on the P3 endopod, with no differences in segmentation as in Nannopus and Pontopolites (Song et al 2007;Karanovic and Cho 2018);…”

Section: Family Nannopodidae Brady 1880mentioning

confidence: 99%

“…The monophyly of the family Nannopodidae has been questioned by several researchers (e.g. Boxshall and Halsey 2004;Kihara and Huys 2009;Huys and Kihara 2010;Karanovic and Cho 2018). Por (1986) proposed the family Huntemanniidae and presented a brief diagnosis combining Metahuntemannia, Huntemannia, Beckeria, Nannopus, Pontopolites and Pseudocletodes, being unaware of the previous composition of Nannopodidae, which included Nannopus.…”

Section: Relationships Amongst Clade Members With Coxal Outer Projections On the Thoracopodsmentioning

confidence: 99%

See 1 more Smart Citation

A new genus and species of Nannopodidae (Crustacea, Copepoda, Harpacticoida) from the Yellow Sea of South Korea

Kim¹,

Lee²

2020

View full text Add to dashboard Cite

A new monospecific genus of the family Nannopodidae Brady, 1880 is proposed, based on specimens of both sexes of Concilicoxa hispidagen. et sp. nov. collected from subtidal sandy sediments in the Yellow Sea of South Korea. The presence of a coxal outer projection on the first to fourth legs and reduction of both rami of the second to fourth legs in this new genus show a clear relationship with a clade, which is characterised by the modified thoracopods for burrowing ability, comprising Huntemannia Poppe, 1884, Rosacletodes Wells, 1985, Laophontisochra George, 2002, Acuticoxa Huys & Kihara, 2010 and Talpacoxa Corgosinho, 2012 in Nannopodidae. Within this clade, C. hispidagen. et sp. nov. is most closely related to L. maryamae George, 2002 in having the prehensile endopod in the first leg, broad intercoxal sclerite on the second to fourth legs and the female fifth leg being composed of separate exopod and baseoendopod, but is distinguished by the absence of mandibular exopod, two-segmented mandibular endopod, presence of four setae on the distal exopodal segment of the first leg, and fusion of the intercoxal sclerite to the coxae in the third and fourth legs. These four features are considered as autapomorphies of the new genus. The possible relationship amongst members of the nannopodid clade is further discussed. Additionally, some comments on the taxonomic position of L. terueae Björnberg, 2014 are given, resulting in the transfer of the species to Acuticoxa as A. terueaecomb. nov.

show abstract

Cladistic and quantitative shape analyses of five new syntopic Sarsamphiascus (Copepoda, Harpacticoida): problems and solutions for diosaccin systematics and taxonomy

Karanovic

2020

Systematics and Biodiversity

Self Cite

View full text Add to dashboard Cite

DESCRIPTION: Female [based on holotype and six paratypes] Body length, from tip of rostrum to posterior margin of caudal rami (excluding caudal setae and appendages), from 590 to 630 μm. Colour of preserved specimens yellowish. Nauplius eye not visible. Prosome comprising cephalothorax (Ct) with completely fused first pedigerous somite and three free pedigerous somites (Fp1 -Fp3); urosome comprising six urosomites (U1 -U6), which include fifth pedigerous somite (U1), genital double-somite (fused genital (U2) and first abdominal (U2) somites), two free abdominal somites without appendages (U4 and U5), and anal somite (U6) with caudal rami (Cr) on posterior margin. Habitus (Figs. 2.1, 10.2) most robust of all Korean species, cylindrical, without distinct demarcation between prosome and urosome; prosome/urosome ratio about 1.1; greatest width at posterior end of cephalothorax. Integument of all somites well sclerotized, smooth, prosomites without pits or spinules, urosomites with numerous rows of minute spinules in addition to large posterior spinules (except first urosomite). Hyaline fringes of all somites wide (except last urosomite, which carries caudal rami, and genital somite, which fused to third urosomite); those of cephalothorax and free pedigerous somites smooth (Figs. 2.2, 2.3), those of urosomites finely serrated (Figs. 2.4, 2.6, 3.1, 3.2). Surface of somites and caudal rami with total maximum of 177 cuticular organs (14 pairs of cuticular pores, 74 pairs of sensilla, and one unpaired dorsal sensillum); additional pores (but not sensilla) present on some appendage segments, and also many setae and spines on antennula and mouth appendages with pore on top (only observable by SEM).Rostrum (Figs. 2.2, 3.3) large, almost as long as first two segments of antennula combined, sharply pointed, beaklike, well demarcated at base from cephalothorax, about three times as long as wide, with single dorsal pair of sensilla (Ct-1) at about 3/5 of its length.Cephalothorax (Fig. 2.2) smooth, cylindrical in dorsal view, tapering towards anterior end in lateral view, representing nearly 38 % of total body length (excluding rostrum). Cephalothoracic shield with two pairs of pores (Ct-I and Ct-II), 32 pairs of sensilla (Ct-2 to Ct-15 and Ct-17 to Ct-34), and one unpaired dorsal sensillum (Ct-16); both pores of similar size, about as large as circular base of sensilla; all sensilla of similar size, long, simple, and slender; sensilla pair Ct-2 at base of rostrum; lateral marginal zone includes sensilla ; posterior marginal zone includes sensilla Ct-29 to Ct-34 (see Fig. 2.2).Pleuron of first free prosomite (second pedigerous somite) (Fig. 2.3) with 10 pairs of long sensilla (Fp1-1 to Fp1-10), one unpaired dorsal pore (Fp1-I), and one pair of lateral anterior pores (Fp1-II); posterior marginal zone includes sensilla Fp1-1, Fp1-2, and Fp1-4 to Fp1-9, while sensillum Fp1-3 situated slightly more anteriorly; lateral marginal zone includes only sensillum Fp1-10; sensilla Fp1-9 and Fp1-10 probably serially homologous to sensilla Ct-...

show abstract

Second members of the harpacticoid genera Pontopolites and Pseudoleptomesochra (Crustacea, Copepoda) are new species from Korean marine interstitial

Cited by 6 publications

References 56 publications

Doolia, A New Genus of Nannopodidae (Crustacea: Copepoda: Harpacticoida) from off Jeju Island, Korea

Doolia, A New Genus of Nannopodidae (Crustacea: Copepoda: Harpacticoida) from off Jeju Island, Korea

A new genus and species of Nannopodidae (Crustacea, Copepoda, Harpacticoida) from the Yellow Sea of South Korea

Cladistic and quantitative shape analyses of five new syntopic Sarsamphiascus (Copepoda, Harpacticoida): problems and solutions for diosaccin systematics and taxonomy

Contact Info

Product

Resources

About