Dynamena crisioides Lamouroux, 1824

Mendoza-Becerril, María A., Estrada-González, Mariae C., Mazariegos-Villarreal, Alejandra, Restrepo-Avendaño, Luisa, Villar-Beltrán, Rogelio D., Agüero, José & Cunha, Amanda F., 2020, Taxonomy and diversity of Hydrozoa (Cnidaria, Medusozoa) of La Paz Bay, Gulf of California, Zootaxa 4808 (1), pp. 1-37: 19-20

publication ID

https://doi.org/10.11646/zootaxa.4808.1.1

publication LSID

lsid:zoobank.org:pub:64E656F6-FBD7-4BA2-B399-B10A97CBEF72

persistent identifier

http://treatment.plazi.org/id/1A5A002B-FFE3-6D63-28E3-38A6858153EC

treatment provided by

Plazi

scientific name

Dynamena crisioides Lamouroux, 1824
status

 

Dynamena crisioides Lamouroux, 1824  

Figs. 7 View FIGURE 7 B –G

Dynamena crisioides Lamouroux 1824: 613   , pl. 90, Figs. 11 View FIGURE 11 –12.— Humara-Gil & Cruz-Gómez 2018: 464 View Cited Treatment , Fig. 7 View FIGURE 7 .

Dynamena tubuliformis Marktanner-Turneretscher 1890: 238   , pl. 4, Fig. 10 View FIGURE 10 .

Thuiaria tubuliformis   .— Fraser (1938a): 56.

Thuiaria crisioides   .— Fraser (1948): 250.

Type locality. Moluccas, Indonesia ( Calder 1991a)   .

Material examined. Polyp—PB6_1, sampling site 2 (1), mature, on rock; PB7_33, sampling site 2 (1), mature, 27°C, on a rock.

Description. Colonies erect, 0.5–1.8 mm high, arising from a creeping hydrorhiza. Hydrocaulus monosiphonic with alternate hydrocladia, irregularly divided into internodes (592.8 µm) by indistinct nodes, each with one to three pairs of subopposite hydrothecae. Exoskeleton with a visible layer corresponding to perisarc. Perisarc thick (5.9–19.8 µm wide). Hydrothecae tubular, abcauline wall concave, adcauline wall convex, adnate for most of their length (421.4–448.6 µm adnate, 99.1–152.8 µm free); 0–104.8 µm distant from adjacent hydrothecae on the same side of the internode. Hydrothecae 113.1–145.1 µm wide, aperture oval; margin with two rounded lateral cusps and a smaller median adcauline cusp; operculum with two valves; hydrothecae with or without intrathecal teeth. Gonotheca oval, 894.9–915.5 µm long, 413.5–470.4 µm wide, with distal neck and orifice nearly round (182.3–230.2 µm wide); with smooth and thin exoskeleton (5.9–8.9 µm wide), borne on hydrocladia or hydrocaulus, with short pedicel (95.4 µm long), arising from the base of hydrotheca.

Nematocysts (length x diam.). Large microbasic eurytele (16.4–18.0 x 6.3–7.4 µm).

More detailed description in Calder (1991a).

Taxonomic status. Accepted. AphiaID 418901.

Distribution. Species distributed in warm waters of all oceans ( Calder 1991a). In Mexican Pacific, it was reported in Guerrero (White Friars Islands) ( Fraser 1948, as T. crisioides   ) and Oaxaca (Panteón Beach and Tangola- Tangola Bay) ( Fraser 1938a, as T. tubuliformis   ; Fraser 1948, as T. crisioides   ; Humara-Gil & Cruz-Gómez 2018).

Kingdom

Animalia

Phylum

Cnidaria

Class

Hydrozoa

Order

Leptothecata

Family

Sertulariidae

Genus

Dynamena

Loc

Dynamena crisioides Lamouroux, 1824

Mendoza-Becerril, María A., Estrada-González, Mariae C., Mazariegos-Villarreal, Alejandra, Restrepo-Avendaño, Luisa, Villar-Beltrán, Rogelio D., Agüero, José & Cunha, Amanda F. 2020
2020
Loc

Thuiaria crisioides

Fraser, C. M. 1948: 250
1948
Loc

Thuiaria tubuliformis

Fraser, C. M. 1938: 56
1938
Loc

Dynamena tubuliformis

Marktanner-Turneretscher, G. 1890: 238
1890
Loc

Dynamena crisioides

Humara-Gil, K. J. & Cruz-Gomez, C. 2018: 464
Lamouroux, J. V. F. 1824: 613
1824