NEW ZEALAND COPEPODA. DT? 
or 4; P. arborea, 3; P. dillwynoides, 3-4; P.-nutans, 3-5; P. 
cunnii, 4; P. media, 4; P. lanceolata, 4-5; P. juniperina, 4-6, 
rarely 3; P. linearis, 4-6; P. myrtilloides, 4-6; P. rigida, 5; P 
pinifolia, 5-6; P. falcata, 5-7; P. hirsuta, 5-8; P. Chamaepeuce, 
6; P. tenuifolia, 7; P. brachystylis, 7; P. quinquenervis, 7-8 ; 
P. teretifolia, 7-8. Of the 61 well marked species of this genus 
hitherto on record, I was thus able to examine 23 as regards 
embryonic structure; but of P. brachystylis, P. elliptica, P. media, 
P. gunnii, P. rigida, and P. tenuifolia, only single fruits were 
accessible to me. As out of the above mentioned 23 species only 
four proved dicotyledonar, it may be fairly assumed that in the 
genus as a whole the pluricotyledonar embryo by far prepon- 
derates. In P. ferruginea, P. confertiflora, P. elliptica, and P 
longifolia, the number of cotyledons seems never to exceed two ;' 
but of P. longifolia I had only two ripe fruits, both of these 
moreover showing the embryo arcuate-curved ; whether this 
curious deviation from the normal type is to be regarded as the 
normal state, or an accidental deformity, must be decided by 
future enquiries. Fora large portion of the material from New 
South Wales, utilized for this essay, | am indebted to Ch. Moore, 
Esq., and the Rev. Dr. Woolls. 
Melbourne, February, 1882. 
BEW. ZEALAND COPEPODA OF THE “ CHAL- 
igh N Gi RE PIs T ELON & 
Extracted from G. S. Brady’s Monograph of this group, 
—_<__.. —__ 
FAMILY II].—CYTHERID (Continued). 
Genus Sclerochilus (G. O. Sars). 
Valves elongated, very hard, especially towards the margins ; 
surface smooth and shining, ornamented with minute scattered 
papilla. Hinge-joint formed by a projecting median crest of 
the left valve. Muscle-spots linear, sub-parallel, arranged in an 
oblique oval patch below the centre of the valve. Antenne 
robust; the anterior bearing on each side of its second joint a 
single seta, its last 5 joints successively smaller, and bear- 
ing numerous long sete; posterior antenne larger than the 
anterior, 5-jointed, flagellum very long and slender. Poison-glands 
very large, and divided into several lobes. Mouth produced, 
conical; labrum strongly toothed. Mandibles small, teeth 
numerous and sharp; palp narrow, indistinctly 3-jointed, and 
having a distinct branchial appendage. Terminal lobes of the 
* Continued from page 12. 
