Ptychogena crocea Kramp & Dumas, 1925

Peter Schuchert, Aino Hosia & Lucas Leclère, 2017, Identification of the polyp stage of three leptomedusa species using DNA barcoding, Revue suisse de Zoologie 124 (1), pp. 167-182 : 177

Ptychogena crocea Kramp & Dumas, 1925

Figs 3-4

Ptychogona crocea Kramp & Dumas, 1925: 290 , pl. 1 figs 1-7. ‒ Kramp, 1933: 558, fig. 21. ‒ Russell, 1940: 519, figs 18-19, nematocysts. – Rees, 1952: 8, record Bergen, Norway. – Kramp, 1959: 137, fig. 158. – Kramp, 1961: 146. ‒ Hosia & Båmstedt, 2007: 116, records Norway, Kors- and Fanafjord.

? Ptychogona crocea . ‒ Léon et al., 2007: 57, record Cape Verde Islands.

in part Lafoea plicatilis M. Sars, 1863: 31 .

? in part Stegopoma plicatile . – Kramp, 1913: 15, figs 1-2. – Broch, 1918: 26, fig. 8. – Edwards, 1973: 590. – Cornelius, 1995: 114, fig. 25. – Schuchert, 2001: 51, fig. 37A-E.

Type locality: Norway, Romsdal, deep waters of Moldefjord.

References: For the medusa Kramp & Dumas (1925), for the hydroid Cornelius (1995) and Schuchert (2001).

Figures

Fig. 3. Ptychogena crocea Kramp & Dumas, 1925, living medusae, except C, from Korsfjord, Norway. (A) MHNG-INVE- 94101, lateral view, bell diameter 23 mm height 14 mm. (B) Same specimen as in A, close up of gonads. (C) Same specimen as in A, nematocysts. (D) Younger individual, used to obtain DNA isolate 1163. (E) Same as D, close up of bell margin seen from oral side, showing tentacles, tentacle stumps and several cordyli.

Fig. 4. Stegopoma plicatile (M. Sars, 1863), preserved sample MHNG-INVE- 69614 (yielding DNA isolate 803) from Korsfjord, Norway, 650 m. (A) Whole colony. (B) Hydrotheca. (C) Branch with gonotheca (arrow). ►