. The Danish Ingolf-expedition. Marine animals -- Arctic regions; Scientific expeditions; Arctic regions. COPEPODA 8l Remarks. In spite of the .small differences enuinerated in the description, I do not donbt that this species is identical with that described by .Sars from Norway, and with that which Wolfenden has described nnder the name of l\scudartidiHs from the Fteroe channel. According to my investigations the size of the specimens varied from 36 to 44 mm., the biggest being those from northern regions; Farran's (1905) specimens measured 3'3â35 mm., and even 2-65; these small specimens po
. The Danish Ingolf-expedition. Marine animals -- Arctic regions; Scientific expeditions; Arctic regions. COPEPODA 8l Remarks. In spite of the .small differences enuinerated in the description, I do not donbt that this species is identical with that described by .Sars from Norway, and with that which Wolfenden has described nnder the name of l\scudartidiHs from the Fteroe channel. According to my investigations the size of the specimens varied from 36 to 44 mm., the biggest being those from northern regions; Farran's (1905) specimens measured 3'3â35 mm., and even 2-65; these small specimens possibly belong to another 17. Chiridius nasutus n. sp. (PI. II fig. 4a; i8aâe). 1905. pars? Cliiridius ariiiatiis Boeck. Farraii. Description. f$. Size: Specimen from vSt. 167 288 nnn.; anterior division 219 mm.; urosonie 0-69. The shape of the body is in the main like that of the preceding species, but somewhat more slender (text-fig. 18 a). The insertion of the autennnlae is apparently better removed from the tip and the rostral spines, which are somewhat longer '' ' and basally swollen, and directed more forwards (text-figs 18 bâc). The anterior division is just three times as long as the abdomen. The genital somite (text-fig. 18d), which has a receptaculum seminis like that of CIi. aniiaf/is. is about i'5 as long as the third and 17 as long as the fourth somite; the furcal rami are 17 as long as wide and 17 as long as the anal somite; the last segment is alnnit half as long as the third one. The aiitciniular. which extend some- what beyond the end of ccphalothorax, but scarcely to the end of the abdominal somite, have the segments 24 and 25 well defined; the measurements differ only in minor details, as the segment 20 is a little longer Text-fig. iS. Ch. mnuitis 11. .sp. than 8~9, as the segment 18 is a little longer than ='⢠"^'^"^ '" dorsal view x 16. b. Rostru,,, from bdow x .50. ' c. Head in lateral view X (>"â f'- Ceiii
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Keywords: ., bookcentury1800, bookdecade1890, booksu, booksubjectarcticregions
