. phot ur. Fig. 22. Transverse section through the junction of the sixth abdominal somite and telson of Systellaspis affinis to show the position and innervation of the uropod photophores. X33. alimentary canal; c. cavity appearing in the section due to the slight overlapping of the telson by the sixth abdominal somite at their junction; ?n. abdominal muscles; nerve from ventral cord to alimentary c-in^X; nerve to photophore;/)/?o/.!«-. photophore immediately in front of uropod base; ventral nerve cord; ' tip of a posteriorl

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. phot ur. Fig. 22. Transverse section through the junction of the sixth abdominal somite and telson of Systellaspis affinis to show the position and innervation of the uropod photophores. X33. alimentary canal; c. cavity appearing in the section due to the slight overlapping of the telson by the sixth abdominal somite at their junction; ?n. abdominal muscles; nerve from ventral cord to alimentary c-in^X; nerve to photophore;/)/?o/.!«-. photophore immediately in front of uropod base; ventral nerve cord; ' tip of a posteriorly directed fold of the ventral nerve cord appearing in the section.

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Keywords: ., bookcentury1900, booksubjectocean, booksubjectscientificexpediti