. Bulletin of the Natural History Museum (Zoology). Fig. 13 Erenna laciniata. Photograph of part of siphosome showing male gonophores. short, brown-coloured stripes. No nematocysts were found on the palpacle. Gonodendra. (Figs 1 ID, 13). The JSL 1688 specimen was fe- male and the gonodendra were arranged in a very similar fashion to that described in Erenna richardi. The JSL 1454 specimen was male, with the individual gonophores apparently scattered randomly down the stem (Fig. 13). Each was a relatively large medusoid, whose manubrium progressively filled with spermatozoa until it occupied al
. Bulletin of the Natural History Museum (Zoology). Fig. 13 Erenna laciniata. Photograph of part of siphosome showing male gonophores. short, brown-coloured stripes. No nematocysts were found on the palpacle. Gonodendra. (Figs 1 ID, 13). The JSL 1688 specimen was fe- male and the gonodendra were arranged in a very similar fashion to that described in Erenna richardi. The JSL 1454 specimen was male, with the individual gonophores apparently scattered randomly down the stem (Fig. 13). Each was a relatively large medusoid, whose manubrium progressively filled with spermatozoa until it occupied almost the entire subumbrella cavity (Fig. 1 ID) and had a milky-white colour. Distribution. The JSL II Dive 1454 specimen came from the region of the Dry Tortugas between Florida and Cuba, while the Dive 1688 specimen came from the region of The Bahamas. In addition, some damaged nectophores that can be referred to this species have been found in the Discovery collections from indi- vidual hauls on the equator at 22°W (805-900 m) and at 3°N 23°W (0-1000m). Behaviour. In life the terminal process of the tentillum was reddish-brown in colour. It was kept rigid and was vibrated rapidly presumably, as was suggested for Erenna richardi, as a form of aggressive mimicry. ETYMOLOGY. The specific name, being Latin for a 'flap', refers to the lateral flap-like process on the bracts. Erenna cornuta HOLOTYPE. The JSL II Dive 1451 specimen is designated holotype, and has been donated to the Natural History Museum, London where it is registered as BMNH Material examined. The description is based on a single speci- men collected during JSL II Dive 1451 at a depth of 896 m. (29 viii 1987; 24°'N 83°'W). In addition, a few specimens that apparently can be referred to this species have been found in recent Discovery collections, but always in a poor state of preservation. DIAGNOSIS. Nectophores relatively less dorso-ventrally flattened, with only the basic ridge pat
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