Archive image from page 44 of The Danish Ingolf-expedition (1898). The Danish Ingolf-expedition danishingolfexpe56dani Year: 1898 HYDROIDA 39 The species may be divided into two forms: Forma genuina., growing, in colonies more openly constructed, on stones and shells {Mytihis)\ it is delicately built and bluish or rose-coloured. Forma squamata forming clusters of polyps more brick-coloured or yellowish-red on the leaves of FHCoideac\ its polyps are large and robustly built. Material: Iceland: Reykjavik Vestmanney Tlie Faroe Islands: Sundelaget north of Kvalvik depth 3 — 4 fathom-s. on the sh
Archive image from page 44 of The Danish Ingolf-expedition (1898). The Danish Ingolf-expedition danishingolfexpe56dani Year: 1898 HYDROIDA 39 The species may be divided into two forms: Forma genuina., growing, in colonies more openly constructed, on stones and shells {Mytihis)\ it is delicately built and bluish or rose-coloured. Forma squamata forming clusters of polyps more brick-coloured or yellowish-red on the leaves of FHCoideac\ its polyps are large and robustly built. Material: Iceland: Reykjavik Vestmanney Tlie Faroe Islands: Sundelaget north of Kvalvik depth 3 — 4 fathom-s. on the shore (on Fucotdeae) on the shore (on Fucotdeae) (There also occur specimens marked 'Faero' without particular data). Clava mnlticoniis and Clava sqiianiafa are recorded by most investigators of hydroids as two separate species; the distinguishing characters, however, are rather vague, being made out by the closer or opener occurrence of the polyps in the colony or \>\ the colour of the colonies. A copious material from various localities, in fact, presents all transitions possible, and it is virtually impossible to draw any certain limit between the species. A closer inquiry soon makes clear to ns that the points of difference must be of biological nature, and the two species, therefore, have to be regarded only as biologically determined 'forms' of a single species, which I, accordingly, denominate forma genuina and forma sqtimata. The occurrence of typical colonies of the forma gcnnrna, which are, in 209 m. ._. 1000 m. Text-fig. K. The distribution of Clava ntulticornis in the Nortliern Atlautic. (In the hatched ])art of tlie Norwegian coastal region the occurrence is rather scarce).
Size: 1830px × 1093px
Photo credit: © Bookive / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: 1890, 1898, archive, book, bookauthor, bookdecade, bookpublisher, booksubject, bookyear, copenhagen_h_hagerup, danish_ingolf_expedition_1895_1896, drawing, historical, history, hydrography, illustration, image, ingolf_ship_, marine_animals, page, picture, print, reference, scientific_expeditions, vintage, wandel_c_f_carl_frederik_1843_1930
