Archive image from page 182 of The Danish Ingolf-expedition (1899-1953). The Danish Ingolf-expedition danishingolfex5cpt9daniuoft Year: 1899-1953 ACTINIARIA 169 tentacles, where they form a bright-red annuhis {Madoniactis Danielsseu). Column dirty-yellow, brownish or brown-red, sometimes with red or reddish, longitudinal spots. Tentacles sometimes uncoloured, sometimes dirty-yellow, brownish or brown-red, frequenth' with more or less distinct, paler or darker transverse bands, sometimes the tentacles are crimson-coloured {U. crassicornis f. laevis Appellcif). Compare also Walton 1908 p. 218—
Archive image from page 182 of The Danish Ingolf-expedition (1899-1953). The Danish Ingolf-expedition danishingolfex5cpt9daniuoft Year: 1899-1953 ACTINIARIA 169 tentacles, where they form a bright-red annuhis {Madoniactis Danielsseu). Column dirty-yellow, brownish or brown-red, sometimes with red or reddish, longitudinal spots. Tentacles sometimes uncoloured, sometimes dirty-yellow, brownish or brown-red, frequenth' with more or less distinct, paler or darker transverse bands, sometimes the tentacles are crimson-coloured {U. crassicornis f. laevis Appellcif). Compare also Walton 1908 p. 218—2ig. Dimensions in contracted state unto about 3,5 cm broad and 2,5 cm high. Occurrence, compare U. jcliiui coriacca. Exterior aspect. The type-specimen, dredged by Danielssen, was nmch contracted in oral- aboral direction. Therefore I cannot decide, whether the colunni is furnished with small vcrrucae or not, but Danielssen declares that there are such. Besides, the description of the spe- cies ,givenbyDanielssen,has beencom- pilated also from Metridium senile [dian- thus) (compare Carlgren 1902 p. 42). Appellof's specimens (Appellof igoo p. 4) as also those collected by Nord- gaard,are provided with small verrucae. Ill the not sexually ripe specimen, dred- ged by Mortensen S. of Bornholm, I cannot see any verrucae by aid of a magnifier, but on the sections there are scattered excavations in the column, in- dicating the presence of small verrucae. f Therefore I think that tliis specimen is forma lofotensis and not crassicornis. Anatomical description: Con- cerning the anatomy of this form I have not much to say. Small specimens agree with such of U. fclina coriacea, in as much as the longitudinal muscles of the tentacles and the radial muscles of the oral disc are ectodermal (textfig. 176, 177). The sphincter of the Bomholm-specimen (fig. 175) differs somewhat from the typical appearance of the sphincter of Urticina. The size of the nematocysts («) and .spirocysts {sp) of s
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