Dentitheca dendritica ( Nutting 1900 )

Torres-Rodríguez, Javier, Ortiz-Oyola, Daniel, Puentes-Sayo, Alejandra, Lecompte, Orlando P. & Jauregui, Aminta, 2020, Genetic and morphologic identities of hydrozoans (Cnidaria, Hydrozoa) from reef patches of Santa Marta, Colombian Caribbean, Zootaxa 4758 (1), pp. 127-140 : 133-134

publication ID

https://doi.org/10.11646/zootaxa.4758.1.5

publication LSID

lsid:zoobank.org:pub:B3A6EB2D-0E5B-47F6-AB1D-799712B8B0F8

DOI

https://doi.org/10.5281/zenodo.3812749

persistent identifier

https://treatment.plazi.org/id/03898790-FFA4-FFAE-FF36-0187FAAE5ED5

treatment provided by

Plazi

scientific name

Dentitheca dendritica ( Nutting 1900 )
status

 

Dentitheca dendritica ( Nutting 1900)

Fig. 3 View FIGURE 3

Plumularia dendritica Nutting, 1900: 67 , pl. 8, figs. 4–6.— Jones, 2002: 217.

Dentitheca dendritica — Humann, 1992: 73, middle photograph.— Humann & DeLoach, 2002: 73, middle photograph—Cairns et al., 2002: 55.

Dentitheca dendritica ― Calder & Kirkendale, 2005: 482.

Type locality. Bahamas: near Little Cat Island ( Nutting 1900: 67) .

Voucher material. Reef patches of Santa Marta, Magdalena, Colombia. 49,2 feet (15 m). April 2016. SCUBA. Fragment of the hydrocaulus with several branches (hydrocladia).

Description. Fan-shaped colonies arising in a root-like form that is interwoven. Hydrocaulus polysiphonic and pinnately arranged. Brown and thick perisarc. The primary branches are polysiphonic and the subsequent ones also but in a smaller proportion until reaching the hydrocladia, which is monosiphonic. Main tube is divided into internodes by weak transverse nodes. Apophyses ending in a distal, oblique node with a cone-shaped nematotheca. Hydrocladia homomerously segmented into internodes separated by oblique nodes. Centrally placed hydrothecae with three nematotheca, one in the middle and two lateral. Hydrothecae tubular, adnate, abcauline side straight to slightly convex, slightly everted at rim. The hydrothecal margin has two lateral teeth with rounded tips. Mobile and bitalamic nematothecas; nematothecas from hydrothecae have a prominent apophyses; lateral nematothecas slightly surpassing the tips of lateral projection of the rim. Male gonotheca has a conical shape, the basal part narrows and the apical part widens. Flat operculum, usually develops from the nematothecas of the hydrocaulus.

Remarks. Male gonotheca is similar with the morphology presented by Galea et al. (2012).

Reported distribution. Atlantic coast of Florida. Palm Beach ( Humann 1992; Humann & DeLoach 2002; Cairns et al. 2002).—Biscayne Bay ( Jones 2002, as Plumularia dendritica ). Florida ( Humann 1992) and the Bahamas ( Vervoort 1968, as Plumularia dendritica ) to the Caribbean Sea ( Calder & Kirkendale 2005; Galea 2010).

Kingdom

Animalia

Phylum

Cnidaria

Class

Hydrozoa

Order

Leptothecata

Family

Plumulariidae

Genus

Dentitheca

Loc

Dentitheca dendritica ( Nutting 1900 )

Torres-Rodríguez, Javier, Ortiz-Oyola, Daniel, Puentes-Sayo, Alejandra, Lecompte, Orlando P. & Jauregui, Aminta 2020
2020
Loc

Dentitheca dendritica

Calder, D. R. & Kirkendale, L. 2005: 482
2005
Loc

Dentitheca dendritica

Humann, P. & DeLoach, N. 2002: 73
Humann, P. 1992: 73
1992
Loc

Plumularia dendritica

Jones, T. 2002: 217
Nutting, C. C. 1900: 67
1900