Dentitheca habereri ( Stechow, 1909 )

Galea, Horia R. & Maggioni, Davide, 2020, Plumularioid hydroids (Cnidaria: Hydrozoa) from off New Caledonia collected during KANACONO and KANADEEP expeditions of the French Tropical Deep-Sea Benthos Program, European Journal of Taxonomy 708, pp. 1-58: 14-15

publication ID

https://doi.org/10.5852/ejt.2020.708

publication LSID

lsid:zoobank.org:pub:DDF28821-1A4A-4457-BB53-1696F3BFB7B2

persistent identifier

http://treatment.plazi.org/id/03D92045-FF85-FFF9-E62F-2349C53BF81B

treatment provided by

Valdenar

scientific name

Dentitheca habereri ( Stechow, 1909 )
status

 

Dentitheca habereri ( Stechow, 1909)  

Fig. 6D View Fig

Plumularia habereri Stechow, 1909: 77   , pl. 6 fig. 4.

Plumularia habereri var. attenuata Billard, 1913: 42   , fig. 34.

Plumularia habereri var. mucronata Billard, 1913: 46   , fig. 40, pl. 2 fig. 24.

Dentitheca habereri   – Stechow 1920: 33; 1923a: 18; 1923b: 227. — Yamada 1959: 80. — Hirohito 1969: 25; 1974: 66; 1995: 259, fig 87a–c. — Kirkendale & Calder 2003: 167.

Dentitheca dendritica   – Nutting 1927: 224 [non Dentitheca dendritica ( Nutting, 1900)   ]. Plumularia habereri   – Bedot 1921a: 27. — Stechow 1913: 91, figs 59–60. — Ryland & Gibbons 1991: View Figure

532, fig. 5. — Ruthensteiner et al. 2008: 20. — Ansín Agís et al. 2014: 806, figs 9–13. — Tseng et al.

2014: 3–5. — Schuchert 2015: 349, fig. 22. Plumularia habereri var. attenuata   – Bedot 1921a: 27. Plumularia habereri attenuata   – Van Praët 1979: 923. Plumularia habereri var. mucronata   – Bedot 1921a: 27. Plumularia   sp. – Inaba 1892: 350, figs 8–10.

non Plumularia habereri   – van Gemerden-Hoogeveen 1965: 60, figs 34–36 [= Dentitheca dendritica  

( Nutting, 1900)]. — Schuchert 2003: 211, fig. 60 [= Dentitheca elongata ( Billard, 1913)   ]. non Dentitheca habereri   – Di Camillo et al. 2010: 4, figs 2–3 [= Dentitheca elongata ( Billard, 1913)   ]. non Plumularia habereri var. elongata Billard, 1913: 44   , figs 25–27 [= Dentitheca elongata ( Billard,  

1913)]. non Plumularia habereri var. mediolineata Billard, 1913: 45   , fig. 39 [= Dentitheca elongata ( Billard,  

1913)]. non Plumularia habereri var. subarmata Billard, 1913: 45   , fig. 38 [= Dentitheca elongata ( Billard,  

1913)].

Material examined

PACIFIC OCEAN • 1 ca 11 cm high, sterile colony; off New Caledonia, stn DW4775; 23°03′ S, 168°17′ E; 140–277 m; 28 Aug. 2016; KANACONO leg.; barcode identifier MT655145 View Materials ; MNHN-IK-2015-573 GoogleMaps   1 ca 10.5 cm high, sterile colony; off New Caledonia, stn DW4743; 22°52′ S, 167°34′ E; 380– 340 m; 23 Aug. 2016; KANACONO leg.; MNHN-IK-2015-574 GoogleMaps   1 ca 16 cm high, sterile colony; off New Caledonia, stn DW4741; 22°52′ S, 167°41′ E; 210– 210 m; 23 Aug. 2016; KANACONO leg.; MNHN-IK-2015-575 GoogleMaps   3 sterile colonies, 16, 18 and 35 cm high; off New Caledonia, stn DW4727; 22°41′ S, 167°02′ E; 120–129 m; 20 Aug. 2016; KANACONO leg.; MNHN-IK-2015-577 GoogleMaps   a 5.5 cm high, sterile colony; off New Caledonia, stn CP4786; 22°46′ S, 167°42′ E; 350–469 m; 29 Aug. 2016; KANACONO leg.; MNHN-IK-2015-591 GoogleMaps   .

Remarks

A recent, comprehensive account is given by Ansín Agís et al. (2014). Despite their opinion, this species is here reassigned to Dentitheca   on the account of the emarginated hydrothecal rim on the adaxial side, creating two latero-posterior, triangular lobes, and the morphology of its gonothecae, as noted above under D. contraria   comb. nov.

The Philippines record by Nutting (1927, as Plumularia dendritica   ), very likely belongs to the present species. Despite Nutting’ statement that his material agrees “very exactly with the original descriptions and figures, and a comparison with the type specimens in the museum of the State University of Iowa confirms this view”, it is believed that this author was mistaken by some obvious similarities between the hydrothecae of these two species. Indeed, upon a close examination, it appears that the hydrothecal rim of D. dendritica   has a pair of distinct, lateral cusps before the adaxial emargination, while the adaxial wall of D. habereri   produces comparatively less marked cusps (compare Galea (2010: fig. 7d–e) with Fig. 6D View Fig herein). It is very unlikely that a common species of the tropical western Atlantic occurs in the tropical western Pacific as well, and no subsequent records of D. dendritica   have been reported from this area.

Distribution

Indonesia ( Billard 1913), Japan ( Hirohito 1995), Taiwan ( Tseng et al. 2014), Philippines ( Nutting 1927, as Plumularia dendritica   ; Ansín Agís et al. 2014, as P. habereri   ), Coral sea off New Caledonia ( Ansín Agís et al. 2014; present study); Fiji ( Ryland & Gibbons 1991), Guam ( Kirkendale & Calder 2003).

Kingdom

Animalia

Phylum

Cnidaria

Class

Hydrozoa

Order

Leptothecata

Family

Plumulariidae

Genus

Dentitheca

Loc

Dentitheca habereri ( Stechow, 1909 )

Galea, Horia R. & Maggioni, Davide 2020
2020
Loc

Plumularia habereri

Van Gemerden-Hoogeveen G. C. H. 1965: 60
Schuchert 2003: 211 , fig. 60
non Plumularia habereri var. elongata Billard, 1913: 44 , figs 25–27
non Plumularia habereri var. mediolineata Billard, 1913: 45 , fig. 39
non Plumularia habereri var. subarmata Billard, 1913: 45 , fig. 38
1965
Loc

Dentitheca dendritica

Nutting C. C. 1927: 224
Bedot M. 1921: 27
Stechow E. 1913: 91
Ryland & Gibbons 1991 : Fig. 6. A–B. Dentitheca contraria ( Ansín Agís et al., 2014 ) , portion of cladium (A) from sample MNHN- IK-2015-582, and comparison with its counterpart of Dentitheca elongata ( Billard, 1913 ) , sample HRG- 1236 (C); gonotheca with female medusoid (B), from sample MNHN-IK-2015-585. — D. Dentitheca habereri ( Stechow, 1909 ) , portion of monosiphonic stem with three cladial apophyses and proximalmost part of a cladium, from sample MNHN-IK-2015-573. Scale bars: A, C–D = 300 µm; B = 200 µm. 532, fig. 5. — Ruthensteiner et al. 2008: 20 . — Ansín Agís et al. 2014: 806 , figs 9–13 . — Tseng et al. 2014: 3–5. — Schuchert 2015: 349 , fig. 22 . Plumularia habereri var. attenuata – Bedot 1921a: 27 . Plumularia habereri attenuata – Van Praët 1979: 923 . Plumularia habereri var. mucronata – Bedot 1921a: 27 . Plumularia sp. – Inaba 1892: 350 , figs 8–10 .
Ruthensteiner et al. 2008: 20
Ansín Agís et al. 2014: 806 , figs 9–13
Tseng et al. 2014: 3–5. — Schuchert 2015: 349 , fig. 22 . Plumularia habereri var. attenuata – Bedot 1921a: 27 . Plumularia habereri attenuata – Van Praët 1979: 923 . Plumularia habereri var. mucronata – Bedot 1921a: 27 . Plumularia sp. – Inaba 1892: 350 , figs 8–10 .
Schuchert 2015: 349 , fig. 22
Bedot 1921a: 27 .
Van Praët 1979: 923
Bedot 1921a: 27
Inaba 1892: 350 , figs 8–10
1927
Loc

Dentitheca habereri

Kirkendale L. & Calder D. R. 2003: 167
Hirohito & Emperor of Japan 1995: 259
Hirohito & Emperor of Japan 1974: 66
Hirohito & Emperor of Japan 1969: 25
Yamada M. 1959: 80
Stechow E. 1923: 18
Stechow E. 1923: 227
Stechow E. 1920: 33
1920
Loc

Plumularia habereri var. attenuata

Billard A. 1913: 42
1913
Loc

Plumularia habereri var. mucronata

Billard A. 1913: 46
1913
Loc

Plumularia habereri

Stechow E. 1909: 77
1909
Loc

Plumularia habereri var. attenuata

Bedot 1921a: 27 .
Loc

Plumularia habereri attenuata

Van Praët 1979: 923
Loc

Plumularia habereri var. mucronata

Bedot 1921a: 27
Loc

Plumularia

Inaba 1892: 350 , figs 8–10
Loc

Dentitheca habereri

Loc

Plumularia habereri var. elongata

non Plumularia habereri var. elongata Billard, 1913: 44 , figs 25–27
non Plumularia habereri var. mediolineata Billard, 1913: 45 , fig. 39
non Plumularia habereri var. subarmata Billard, 1913: 45 , fig. 38
Loc

Plumularia habereri var. mediolineata

non Plumularia habereri var. mediolineata Billard, 1913: 45 , fig. 39
non Plumularia habereri var. subarmata Billard, 1913: 45 , fig. 38
Loc

Plumularia habereri var. subarmata

non Plumularia habereri var. subarmata Billard, 1913: 45 , fig. 38