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PACIFIC SCIENCE, VoL VII, April, 1953 
lations, last one strongest. Granulations of 
last segments much weaker than those of 
anterior segments. Some weak granulations 
upon pleonites 1-3. Every granulation covered 
with a bristle-scale {Schuppenborste of German 
authors) surrounded with numerous accessory 
scales (Fig. \d). 
Carapace covered with laciniate scales. 
Pleonites 4-5 without glandular pores. 
SOMATIC characters: Antennary tubercles 
of cephalon, large triangular, projecting for- 
ward. 
Tip of telson rounded, with 4 bristles (Fig. 
!.?)• 
APPENDAGES: Afitemula (Fig. Ic)— 3-seg- 
mented, last article with 10 sensory hairs 
{aesthetascs ) . 
Antenna (Fig. 1^/)— long; articles 2, 3, and 
4 grooved; articles 4 and 5 with 3 rows of 
scaly tubercles. Flagellum 6-segmented; arti- 
cles 2, 3, and 4 with sensory hairs (aesthetascs^. 
Right mandible (Fig. l/) — 2 median peni- 
cills and 1 molar penicill. 
Left mandible — (.^), crushed. 
Maxillula—outQt endite (Fig. 2b) termi- 
nated with 11 teeth and 2 stalks, one long and 
cylindrical, the other short and feathered. 
Maxilliped (Fig. 2^)— palp 4-segmented; 
only first article individualized. Tip of endite 
terminated with 3 strong bristles and conical, 
ciliated spindle. 
Peraeopods—nosmA, long and slender. 
Pleopod 3 — exopodite quadrangular. 
Pleopods 4 and 5— exopodite triangular. 
Uropod (Fig. 1^)— endopodite a little short- 
er and very much narrower than exopodite, 
terminated with a very long stalk; exopodite 
with cluster of short stalks. 
SECONDARY SEXUAL MALE CHARACTERS: 
Peraeopod 7— meros and carpos fringed with 
hyaline scales. 
Peraeopod VII — destitute of sexual differ- 
ences. 
Genital duct (Genitalkegel of German au- 
thors) (Fig. 2^)— very long, narrow, conical 
at tip. 
Fig. 1. Caucasonethes rothi n. sp.; a. Bristle-scale of 
tergite I; b, laciniate scale of carapace; c, antennula; 
d, antenna; e, uropod; /, right mandible; g, telson. 
