Anania Ba ua aa ee ee ee 
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NENNT Ce ee ee eee eS ee ee TA 
G. M. Tuowsox.—On the New Zealand Entomostraea. 255 
fringed setze. Terminal claws of the legs long and curved, those of last 
pair pectinately toothed. Abdominal lobes terminating in two short, 
unequal, fringed sete. 
Length 4 inch ; height s inch. 
In Alge along with preceding species. Otago Harbour. 
Genus 2. Loxoconcha, G. O. Sars. 
Valves sub-rhomboidal in shape, surface usually marked with fine con- 
centric pittings and circular papille ; ventral margins forming a thin and 
more or less prominent keel behind the middle; posterior dorsal margin 
obliquely truncate. Limbs of the animal slender and colourless. Upper 
antennz very slender, six-jointed, last joint very long, linear and bearing 
long, simple sete; lower antennz four-jointed, third joint long and narrow ; 
flagellum long and bi-artieulate. Mandibular palp three-jointed, bearing a 
distinct branchial appendage. Lowest seta of the branchial plate of first 
pair of jaws deflexed. Abdomen terminated by a hairy, conical process; 
postabdominal lobes bearing two moderately long, subequal setae. 
“The genus is well characterised by the oblique * peach-stone' outline 
of the carapace, and by the very slender setose, but non-spinous limbs of 
the animal." 
1. Loxoconcha punctata, nov. sp. Fig. B.8 a-k. 
Valves of the male sub-rhomboidal; greatest height less than two- 
thirds the length ; extremities obliquely rounded, whole lower margin more 
orless flattened and keeled, minutely ciliate. Viewed from above, evenly 
convex, widest in the middle, and tapering to both ends. Surface marked 
with dark spots and numerous translucent punctations. Colour greyish, 
shining and somewhat translucent. Valves of the female rather longer, 
more reniform in outline and usually much more opaque; keel not so 
prominently flattened. Hinge processes well marked ; intervening portion 
of margin crenulated. Eyes distinct and separate. Superior antenne very 
sparingly setose: sete long. Third joint of inferior antenna with two 
sete above the middle of the posterior margin, and pectinately toothed 
towards the extremity. Urticating sets reaching to extremity of antenne; 
glands large. Terminal claws of all the feet long and curved. Length 4, 
inch; height 4, inch. 
Among seaweed, along with the two preceding species of Cythere, in 
Otago Harbour. ? 
This appears to be a very variable species, particularly in the texture of 
the shell. In some the valves are nearly translucent, while gradations can 
be traced up to complete opacity. 
Sect. II. Myodocopa. 
Inferior antenne two-branched; one branch rudimentary, the other 
powerful, many-jointed, with long natatory sets; pue palp very 
