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PACIFIC SCIENCE, Vol. XX, October 1966 
ABBREVIATIONS USED IN FIGURES 
AB 
atrial bulb 
GI 
genito-intestinal canal 
PH 
prohaptor 
AG 
apical gland 
GO 
Goto’s organ 
PM 
pars muscularis 
AP 
accessory piece 
GP 
genital pore 
PR 
prostatic reservoir 
AS 
axial sclerite 
HC 
head cone 
RS 
receptaculum seminis 
BC 
bulbus cirri 
I 
intestine 
S 
sucker 
BE 
bulbus ejaculatorius 
IB 
intestinal branch 
SG 
shell gland 
C 
cirrus 
ID 
intestinal diverticle 
T 
testis 
CA 
caudal appendage 
LL 
larval lappet 
TG 
terminal genitalia 
CL 
clamp 
M 
mouth 
U 
uterus 
CP 
cirrus pouch 
O 
ovary 
V 
vagina 
cs 
crown of spines 
OC 
eyespot 
VD 
vas deferens 
cv 
clamp valve 
OH 
opisthohaptor 
VGD 
vaginal duct 
DE 
ductus ejaculatorius 
OS 
oral sucker 
VP 
vaginal pore 
E 
egg 
P 
pharynx 
VR 
vitelline reservoir 
ES 
esophagus 
PC 
prostatic cell 
VT 
vitelline gland 
GA 
genital atrium 
PD 
prostatic duct 
VXD 
vitelline duct 
constricted laterally near broadly rounded pos- 
terior end, 0.22-0.52 X 0.24-0.65 mm. Esoph- 
agus short; each intestinal limb giving off more 
or less dendritic outer branches, of which the 
anterior pair extends into the frontal plate, 
almost meeting in the median line; posterior- 
most pair sends out several outer branches 
reaching lateral edges of body and a few 
shorter inner branches probably anastomosing 
each other; no anastomosis between two main 
intestinal limbs posteriorly. 
Testes oval to elliptical, 0.28-0.8 X 0.18-0.5 
mm, directly juxtaposed, largely in posterior 
part of middle third of body, with paired mul- 
tinucleate Goto’s glands immediately behind. 
Vas deferens running forward along left mar- 
gin of ovary, convoluted just medial to left in- 
testinal limb, then crossing uterus dorsally and 
coming to right side of median line, where it 
enters the cirrus pouch along with the prostatic 
reservoir and finally unites with the prostatic 
duct to lead into extremely long (2-3 mm or 
more) spicular cirrus. Prostatic cells massed 
around distal portion of vas deferens and pro- 
static reservoir which is elliptical, 0.1 mm long 
by 0.05 mm wide in the type and lies longitu- 
dinally alongside the vas deferens. Cirrus pouch 
somewhat muscular, small (exact length not 
determinable), containing winding vas deferens 
and more or less convoluted prostatic duct; both 
ducts joining together to form cirrus which is 
enclosed throughout its length in the thin- 
walled, tubular, genital atrium, and may or may 
not project out of the genital pore. The genital 
atrium is continued from the wall of the cirrus 
pouch with the same diameter as the latter, but 
tapers into a very long, narrow tubule which 
runs backward and then curves toward the left 
in front of the transverse vitelline duct ; it turns 
back on itself here to follow the same course as 
its proximal portion, and after passing beside 
the cirrus pouch proceeds straight obliquely for- 
ward to open ventrosublaterally at the level of 
the posterior end of the pharynx on the left 
side. 
Ovary subglobular, 0.08-0.28 X 0.1-0.25 
mm, situated medianly between anterior ends 
of testes. Germiduct arising from anterior end 
of ovary, joining duct from vitelline reservoir 
and leading into ootype which passes into a 
long, winding, muscular uterine duct. Uterus 
proper forming diverticle-like expansion when 
distended with eggs; distal portion of uterus 
proper running obliquely forward along with 
genital atrium, opening together with latter by 
a common pore. Shell gland cells developed 
around ootype. Eggs mostly rounded conical, 
but rounded triangular in flattened condition, 
Fig. 1 . Pseudallobenedenia apharei n. g., n. sp. 1 A, Holotype, ventral view; IB, haptoral anchors of 
paratype; 1C, terminal genitalia of paratype, ventral view. 
Fig. 2. Pseudallobenedenia opakapaka n. sp. 2 A, Holotype, ventral view; 2B, haptoral anchors; 2C, ter- 
minal genitalia, ventral view. 
