Corydendrium sp., 1844

Estrada-González, Mariae C., Agüero, José & Mendoza-Becerril, María A., 2023, Medusozoans from the Mexican Pacific: a review based on historical literature and recent observations, Journal of Natural History 57 (1), pp. 784-853 : 819-820

Corydendrium sp.

( Figure 5E )

Material examined

1 colony, polyp, without gonophores; El Mogote Sand Bar, La Paz Bay , Baja California Sur, 24.159°N, 110.341°W; depth 0–2 m; 1 July 2019; on barnacle; ECO-CH-Z 11800 .

Description (after Calder 1988)

Colony erect, hydrocaulus monosiphonic, irregularly branched; branches partly adnate to hydrocaulus. Perisarc pedicel terminating abruptly below hydranth.

Distribution

This constitutes a new record of the genus Corydendrium for the west coast of the Gulf of California . In the Mexican Pacific , three species of the genus have been recorded, C . flabellatum in Nayarit and Jalisco ( Fraser 1938a), C. fruticosum in Baja California ( Fraser 1948), and C. parasiticum in Sinaloa ( Alvarez-León and Wedler 1982).

Figures

Figure 5. (A–C) Hydrocoryne sp.: A, hydranth; B, undischarged microbasic eurytele and stenotele nematocysts; C, discharged stenotele nematocyst. D, Porpita porpita (Linnaeus, 1758): colony. E, Corydendrium sp.: colony. (F, G) Cirrholovenia sp.: F, colony; G, hydrotheca. Scale bars: A = 500 μm; B, C = 20 μm; G = 100 μm. Photograph taken by Ángel Silveyra Bustamante (D).