Dentitheca Stechow, 1919

Agís, José Ansín, Vervoort, Willem & Ramil, Fran, 2014, Hydroids of the families Kirchenpaueriidae Stechow, 1921 and Plumulariidae McCrady, 1859 (Cnidaria, Hydrozoa) collected in the Western Pacific Ocean by various French Expeditions, Zoosystema 36 (4), pp. 789-840 : 813-814

publication ID

http://doi.org/ 10.5252/z2014n4a6

persistent identifier

http://treatment.plazi.org/id/36306927-FF8C-D64C-6ED5-FC257830FAA3

treatment provided by

Felipe

scientific name

Dentitheca Stechow, 1919
status

 

Genus Dentitheca Stechow, 1919  

Dentitheca hertwigi ( Stechow, 1909)   ( Fig. 14 View FIG ; Table 10)

Plumularia Hertwigi Stechow, 1909: 76   , pl. I, fig. 9, pl. VI, figs 1-3; 1913: 93; 1919: 117, fig. T1.

Dentitheca hertwigi   – Hirohito 1995: 261, fig. 88a-e.

MATERIAL EXAMINED. — Type material of Dentitheca hertwigi Stechow, 1909   : ZSM 20041700. Sagami Bay, near Misaki, Japan, depth 15-20 m, Doflein Expedition, 11-X-1904, One slide. ZSM 20051235, Sagami Bay, near Misaki, Japan, depth 15-20 m, Doflein Expedition, X-1904, one slide.

DISTRIBUTION. — Dentitheca hertwigi   is known only from Japan waters ( Stechow 1909, Hirohito 1995).

REMARKS

Dentitheca hertwigi   , type species of Dentitheca Stechow, 1919   ( Millard, 1975), is characterized by the morphology of its hydrothecae, with two large triangular lobes on the hydrothecal margin. This is the diagnostic character of the genus according to Stechow (1923b) and Bouillon et al. (2006) (fig.14B, C). Plumularia habereri   lacks such triangular lobes, and its hydrothecal margin is straight and only lowered in the adcauline side, not produced. Plumularia asymmetrica Bale, 1914   was included in the synonymy of P. hertwigi   by Schuchert (2014b), but the asymmetrical morphology of the hydrothecal margin, with only one lateral lobe, and the presence of an intrathecal septum in the abcauline wall of the hydrotheca clearly separates both species. The presence of the intrathecal septum approaches that in P. elongata   , but it is distinguished by the single marginal lobe ( Bale 1914; pl. IV, figs 2-3).

Genus Plumularia Lamarck, 1816  

ZSM

Bavarian State Collection of Zoology

Kingdom

Animalia

Phylum

Cnidaria

Class

Hydrozoa

Order

Leptothecata

Family

Plumulariidae

Loc

Dentitheca Stechow, 1919

Agís, José Ansín, Vervoort, Willem & Ramil, Fran 2014
2014
Loc

Dentitheca hertwigi

HIROHITO 1995: 261
1995
Loc

Plumularia Hertwigi Stechow, 1909: 76

STECHOW E. 1909: 76
1909