
20 RECORDS OF THE S.A. MUSEUM 
shown by Sars, 1915). The maxilla and maxilliped are of stouter construction 
than in that species and the division of the terminal portion into segments is in- 
distinct. The swimming legs are as in elongatus, with the following seta formula: 
endopod. exopod. 
pl. 12.321. 1,1.223,. 
p.2. 1.2.321. 1.1.323. 
p.3. 1,2,321. 1,1.323. 
p.4. 1.2.221. 1.1.323. 
This differs from elongatus in that the first endopod has two inner setae on the 
middle segment and both rami of the third and fourth legs have each a terminal 
seta and spine, asin the third endopod of elongatus. The fifth legs are elongate, with 
a single distal seta. The caudal rami have four terminal setae. 
T have not been able to see a description of S. stylifer, but the present species 
differs from the others in having the anterior body considerably dilated, the geni- 
tal segment as wide as long, rounded and without lateral teeth, the second and 
third segments of the urosome sub-equal, the terminal segment of the first an- 
tenna divided, the maxilla and maxilliped comparatively more robust, and the fifth 
leg extending to beyond the middle of the genital segment. It resembles S. longi- 
furca in having the third and fourth segments of the first antenna separate and, 
as in elongatus, the caudal rami are sub-rectangular and about half as long as the 
anal segment. 
Famity ACONTIOPHORIDAE Sars. 
Sars, 1915, p. 109. 
This monogeneric family was established by Sars (1915) for a genus which 
departed in several respects from the typical Asterocheridae. 
Genus AconTiopHoRus Brady. 
Brady. 1880, pp. 28, 69; Giesbrecht, 1897, p. 18; Sars, 1915, p. 110. 
The name was first used by Brady (loc. cit.) in place of Solenostoma Brady 
and Robertson (1873), which was preoccupied. There are three species: scutatus 
(Brady and Robertson) 1873, syn. angulatus I. C. Thompson 1888 ; ornatus (Brady 
and Robertson) 1875, syn. armatus Brady, 1880; and antennatus Hansen, 1923. 
A. elongatus T. and A. Scott (1894) was made the type of Giesbrecht’s new genus 
Scottocheres (supra). A fourth species is described here. 
KEY TO THE SPECIES OF ACONTIOPHORUS. 
1. End segments of second antenna sub-equal oy a + rt, BS 
Distal segment twice as long as penultimate 2p .. antennatus Hansen 1923. 
2. Exopod of second antenna no longer than penultimate segment 
ornatus (Brady and Robertson) 1875. 
Exopod of second antenna longer than this segment .. oe rsc8 Oe 
3. Exopod of second antenna not reaching the middle of the terminal segment; caudal rami 
three times as long as wide .. scutatus (Brady and Robertson) 1873. 
Exopod of second antenna reaching beyond the middle of the terminal segment; caudal rami 
twice as long as wide ro s rv ae zealandicus sp. Nov. 
ACONTIOPHORUS ZEALANDICUS sp. nov. 
syn. A. scutatus (Brady and Robertson) G. M. Thomson, 1883. 
Occurrence, IX, 1 female; XI, 3 females, 1 male; XII, 1 female. 
Distribution. Otago Harbour, New Zealand. 
