Comparative Parasitology 67(2) 2000 - Peru State College

Sphyraena chiysotaenia Klunzinger, 1884
(Sphyraenidae): Persian Gulf off Kuwait (16 October
1996).
PREVIOUS RECORDS: Sphyraena sp.: Macassar,
Celebes (Yamaguti, 1953). Great barracuda,
Sphyraena barracuda (Walbaum, 1972): Nosy
Be, Madagascar (Rakotofiringa and Maillard,
1979).
SPECIMENS STUDIED: 34 voucher specimens,
USNPC 89028, HWML 15020.
REMARKS: While Yamaguti (1953) did not
adequately describe the haptoral sclerites, male
copulatory organ, and trunk sclerites of Pseudolamellodiscus
sphyraenae, our examination of
the holotype and paratypes of this species confirmed
that our specimens were conspecific with
P. sphyraenea. In the account of P. sphyraenea
from Madagascar by Rakotofiringa and Maillard
(1979), the morphology of the haptoral and
trunk sclerites were also not presented, but their
figure of the trunk region, which includes a
small drawing of the male copulatory organ,
clearly supports their identification. However,
both Yamaguti (1953) and Rakotofiringa and
Maillard (1979) confused the vagina with the
uterus. This error is supported by some of our
specimens that contained a spermatophore in the
tube that these authors described as the "uterus"
and a developing egg in the tube they labeled
"vagina."
The slide containing the types of P. sphyraenea
includes the holotype, 23 paratypes, and
several fragments of specimens. Included in the
23 paratypes are 2 specimens clearly of an undescribed
Pseudolamellodiscus species, characterized
by having 1 large ventral trunk sclerite
with a bifurcated, foliated proximal end.
Lamellodiscus furcillatus sp. n.
(Figs. 35-42)
DESCRIPTION: Lamellodiscinae. Body 1,092
(924-1,294; n = 4), long, fusiform; greatest
width 207 (183-226; n = 4), usually in posterior
trunk near level of testis. Tegument smooth. Cephalic
margin tapered; 2 terminal, 2 bilateral cephalic
lobes poorly developed; 3 bilateral pairs
of head organs with anterior, posterior pairs associated
with respective cephalic lobes; cephalic
glands posterolateral to pharynx. Eyes 4; equidistant;
members of posterior pair larger than
anterior members; anterior eyes occasionally absent;
granules ovate, variable in size; accessory
KRITSKY ET AL.—DIPLECTANIDS FROM KUWAIT 155
granules common in cephalic region. Mouth
subterminal, ventral to pharynx; pharynx 54
(46-60, n = 4) wide, ovate to subspherical; bilateral
pair of prepharyngeal (buccal) glands anterior
to pharynx; esophagus short to nonexistent;
intestinal ceca blind. Peduncle broad. Haptor
163 (148-180; n = 4) wide, 111 (104-117;
n = 4) long, bilaterally lobed; lobes short. Lamellodiscs
similar; each 58 (52-62; n = 4) long,
42 (40-46; n — 4) wide, ovate, with 10 lamellar
rings; anterior (deep) lamella forming complete
ring; intermediate lamellae superficially incomplete,
medially indented; posterior (superficial)
lamella indented, complete. Ventral anchor 58
(54-61; n — 8) long, with elongate deep root,
short depressed superficial root, evenly curved
shaft, recurved point; point extending slightly
past level of tip of superficial anchor root; anchor
base 11-12 (n = 2) wide. Dorsal anchor 48
(45-52; n = 8) long, with elongate deep root,
erect knob-like superficial root, evenly curved
shaft, nonrecurved point; anchor base 14-15
(n = 2) wide. Ventral bar 76 (70-82; n = 8)
long, plate-like, with ends constricted subterminally,
ventral groove. Paired dorsal bar 62
(56-68; n = 8) long, morphologically complex,
broad. Hooks similar; each 12 (11-13; n = 7)
long, with protruding slightly depressed thumb,
delicate point, shank; FH loop shank length.
Hook pair 1 submedial at level of posterior margin
of ventral bar; pairs 2-4 submarginal in lateral
haptoral lobes; pair 5 associated with ventral
anchor shafts; pairs 6, 7 dorsal at level of tip of
deep root of ventral anchor. Male copulatory organ
60 (58-65; n = 7) long, a sigmoid tube with
acute recurved tip. Accessory piece 53 (49—58;
n = 4) long, with subterminal elongate branch.
Testis subspherical, 111 (110-113; n = 2) in diameter,
course of vas deferens not observed;
seminal vesicle a simple dilation of vas deferens,
lying to left of body midline dorsal to seminal
receptacle; prostatic reservoir saccate, lying anterior
to copulatory complex. Ovary 65 (64—67;
n = 2) wide, elongate pyriform, diagonal, looping
right intestinal cecum, overlapping testis;
oviduct elongate; ootype ventral, a small dilated
portion of female duct; uterus delicate, seminal
receptacle small. Vaginal aperture sinistral; vagina
short, frequently containing apparent subspherical
spermatophore. Vitellaria throughout
trunk, except absent in regions of reproductive
organs.
Copyright © 2011, The Helminthological Society of Washington