Vol. XXVI 11 



IQI2 



] Searle, Some New Victorian Copepoda. 197 



ant en use of great length — far exceeding that of the whole animal, 

 including the caudal setae— and adorned with very long setae. 



Fifth thoracic legs in female of the shape typical of the genus. 



Fifth pair of legs in male closely resembling those of B. tas- 

 nianica, having the spatulate exopodite and the peculiar lobes 

 attached to the endopodite. 



First antenna of male geniculated on right side, scarcely 

 thickened in the middle, and furnished with numerous 

 cssthetasks* 



Colour. — Brown. 



Length. — 1.5 mm. 



Occurrence. — Nyora. 



I have since collected this species in a swamp at Cauliield 

 (2nd December, 191 1). 



BoECKELLA NYORAENsis, J. Searle, n. sp. 



Specific Characters. — Body of female oblong, with head taper- 

 ing and rounded off anteriorly. Head and segment fused with 

 it as long as the succeeding segments. 



Fifth thoracic segment with enormous lateral projections, 

 very slightly divergent, lanceolate, hooked outwards at the tip 

 and extending backwards nearly to the end of the caudal furca ; 

 inner lobe on left side small, triangular, with pointed end, that 

 on the right inconspicuous, with parallel sides, round at the 

 end. The abdomen consists of three segments, genital segment 

 asymmetrical, much swollen in the middle and slightly pro- 

 tuberant on the ventral side ; furcal processes with short, very 

 stout setae, densely plumose ; egg-sac containing thirty-five to 

 forty eggs. First antennae twenty-five joints, when reflexed 

 reaching beyond the caudal furca. Fifth legs resemble B. 

 triarticulata. First antennae of male geniculated on right side, 

 and bearing a great many cesthetasks. 



The fifth pair of legs of male resemble those of B. saycei, but 

 the spines on the first and second joint of the exopodite of 

 right leg are setaceous, the terminal claw much straighter ; the 

 endopodite, with three imperfect joints, also differs somewhat in 

 shape from B. saycei. The terminal claw on the left leg also 

 bears numerous small setae. 



Colour. — Body green, antennae ameythst coloured. 

 Length. — 2.60 mm. 

 Occurrence. — Nyora. 



* Aisthetask is the term applied by Geisbrecht to various-shaped attachments 

 to the antennae of Copepods ; they are supposed to be of a sensory character 

 ("I>as Tierreich — Gymnoplea," Geisbrecht und Schmei!). 



