. Discovery reports. Discovery (Ship); Scientific expeditions; Ocean; Antarctica; Falkland Islands. Fig. 18. S. crassus. a, Acanthosoma 2; b, Mastigopus i. Mastigopus I (Figs. 18 6, 19 a-g). Length 4-15 mm. Rostrum 075 mm. Rostrum reaching end of peduncle of antennule; basal spine small. Carapace short, its length about i\ times the breadth. Supraorbital spine very small; marginal spine of Acanthosoma retained. Hepatic spine absent. Dorsal organ minute. Dorsal spines of abdominal somites 1-3 very small, those of 4-6 larger. Pleura rather expanded, with very small points. Telson twice as long a
. Discovery reports. Discovery (Ship); Scientific expeditions; Ocean; Antarctica; Falkland Islands. Fig. 18. S. crassus. a, Acanthosoma 2; b, Mastigopus i. Mastigopus I (Figs. 18 6, 19 a-g). Length 4-15 mm. Rostrum 075 mm. Rostrum reaching end of peduncle of antennule; basal spine small. Carapace short, its length about i\ times the breadth. Supraorbital spine very small; marginal spine of Acanthosoma retained. Hepatic spine absent. Dorsal organ minute. Dorsal spines of abdominal somites 1-3 very small, those of 4-6 larger. Pleura rather expanded, with very small points. Telson twice as long as wide, with strong lateral spines; arms of. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Institute of Oceanographic Sciences (Great Britain); National Institute of Oceanography of Great Britain; Great Britain. Colonial Office. Discovery Committee. London ; New York : Cambridge University Press
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