. The Danish Ingolf-expedition. Marine animals -- Arctic regions; Scientific expeditions; Arctic regions. RHIZOCEPHALA OF THE NORTH ATLANTIC REGION and the posterior part of the body have a more or less curved shape. In the animals of this species which have a well-developed mantle opening often eggs or larva? are found in the mantle cavity. Already rather small specimens may contain fully developed larvae. Of the figured specimens those of fig. 12 d and g contained an abundancy of larvae in the mantle cavity. The form of these larvae will be described further on. As a result of the elongate f
. The Danish Ingolf-expedition. Marine animals -- Arctic regions; Scientific expeditions; Arctic regions. RHIZOCEPHALA OF THE NORTH ATLANTIC REGION and the posterior part of the body have a more or less curved shape. In the animals of this species which have a well-developed mantle opening often eggs or larva? are found in the mantle cavity. Already rather small specimens may contain fully developed larvae. Of the figured specimens those of fig. 12 d and g contained an abundancy of larvae in the mantle cavity. The form of these larvae will be described further on. As a result of the elongate form which is acquired by the older specimens of Clistosaccus paguri this. Fig. 12. Clistosaccus paguri. a, from Eupagurus pubescens, Steenstrup's collection, lateral surface, ; ; c, the same, dorsal surface; d, from Eupagurus pubescens, Greenland, lateral surface. X 4; r from Eupagurus Bernhardus, Faeroes, dorsal surface, x ; /, the same, lateral surface; g, from Eupagurus pubescens, "Thor". 6l°l5' N., 9°35' W., 970 m, dorsal surface, . 3 2; h. from Eupagurus Bernhardus, Kattegat, lateral surface, X ; i, from Eupagurus pubescens, Greenland, lateral surfai • X 3-2;/, the same, dorsal surface. In all figures the mantle opening is indicated with 0 (or the anterior part with X) and the stalk with s. species has often been confused with specimens of Peltogaster. Some instances where in all probability tIk- animals were incorrectly identified are dealt with above. Clistosaccus paguri has been found on the following hermit crabs: Eupagurus Bernhardus (Lilljeborg, 'boa, Malm, '81), Anapagurus chiroacanthus and A. forbesi (Sars, '90). The specimens in my material for a large part were parasites of Eupagurus pubescens, on which the species probably was found already by Krover ('42). The mantle of Clistosaccus paguri is rather thick and muscular. In young specimens (fig. [3 d) the transverse musculature has not yet developed, but these muscles are clearly visible m
Size: 2092px × 1195px
Photo credit: © The Book Worm / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1800, bookdecade1890, booksu, booksubjectarcticregions
