@article{oai:nipr.repo.nii.ac.jp:00005016,
 author = {THOMAS, P. G. and NASH, G. V.},
 journal = {Proceedings of the NIPR Symposium on Polar Biology},
 month = {Dec},
 note = {P(論文), The structure of Euphausia superba and E. crystallorophias's developing thelyca and male spermatophore, obtained from exuviae casted from animals maintained in the laboratory, have been examined using both light and scanning electron microscopy. This is the first report of adult E. crystallorophias being held in the laboratory for greater than 12 months. The thelycum has a characteristic structure in both species examined, confirming its importance in the systematics of euphausiids. Differences were also observed in the shape, but not in the surface structure of the spermatophore between species. The spermatophores in both species were formed from numerous overlapping circular chitinous plates. Following spermatophore attachment, the thelycum in each species was observed to change. The most noticeable difference being the complete covering of E. crystallorophias's, thelycum with a chitinous substance once the spermatophore has been attached.},
 pages = {63--71},
 title = {THELYCUM AND SPERMATOPHORE STRUCTURE IN THE ANTARCTIC EUPHAUSIIDS EUPHAUSIA SUPERBA AND E. CRYSTALLOROPHIAS (Ninth Symposium on Polar Biology)},
 volume = {1},
 year = {1987}
}