Dr. Murai Éva szerk.: Parasitologia Hungarica 19. (Budapest, 1986)
Trianchoratus parvulus sp.n. (Fig. 39-43). Host: Anabas Jestujdjneus (Bloch) (Anabantidae). Locality: Tanjung Karang, Selangor (type locality) and Bukit Merah Reservoir, Perak. Type specimens: Holotype USNM. No. 77282, paratype UMZD(P) No. 25. No. measured: 5. Body size 523 (468-573) x 93 (62-156). 4 eyespots, alimentary system and reproductive systems as in T. trichogasterium sp. n. Dorsal anchors unequal; right anchor rudimentary, somewhat arcuate, length 12 (11-13); left anchor developed, inner length 23 (21-24), outer length 17 (15-18), inner root 13 (10-16), outer root stumpy and recurved point 15 (15-18). Ventral anchors equally developed, inner length 32 (31-34), outer length 24 (23-25), inner root 17 (16-19), outer root 9 (7-10) and recurved point 15 (15-18). All developed anchors oriented ventrally. Haptoral bar absent. 14 marginal hooks, proximal tip with knob resembling a pinhead, length 13 (12-14). Copulatory organ consisting of slightly coiled tube and grooved accessory piece bearing protruding sclerite. Vaginal system not distinct as in T. trichogaste rium sp.n. Remarks This species is differentiated from existing Trianchoratus species in possessing the smallest left dorsal anchor. Unlike T. grandis sp.n. the ventral anchors here are similar to the ventral anchors in the other Trianchoratus. However as in T. grandis sp.n. the copulatory organ is comparatively smaller than in the other Trianchoratus species and the vaginal system is not distinct as in the others. This species is named Trianchoratus parvulus sp.n. because of the relatively smaller dorsal anchor. Trianchoratus malayensis sp.n. (Fig. 44-49). Host: Opycephalus_lu_ciu_s_(Cuvier et Vallenciennes) (Ophicephalidae). Locality: Tasek Bera, Pahang. Type specimens: Holotype USNM No. 78041, paratype UMZD(P) No. 28Body size 477 (336-714) x 118 (84-168). 4 eyespots. Alimentary system consists of pharynx, short esophagus and coeca which unite just above haptor. Ventral lobes of haptor more developed and flexible than dorsal lobes. Dorsal anchors unequal, right anchor rudimentary, somewhat arcuate, length 12 (12-15), left dorsal anchor developed, inner length 30 (30- 35), outer length 25 (22-28), inner root 20 (18-22), outer root 5 (5-8) and recurved point 15 (15-18). Ventral anchors equally developed, inner length 30 (30-35), outer length 25 (22-28), inner root 20 (18-22), outer root 5 (5-10) and recurved point 20 (18-25). All developed anchors oriented ventrally. Haptoral bar absent. 14 marginal hooks, proximal tip with knob resembling a pinhead, length 15 (15-18). Testis dorsal to ovary. Vas deferens arises anteriorly from testis crosses diagonally along dorsal region of body, twist round the left coecum onto ventral side before dilating to form pyriform seminal vesicle, opening via ductus ejaculatorius into initial part of copulatory organ. Prostate gland open separately into initial part of copulatory tube. Copulatory organ consists of coiled tube and grooved accessory piece without protruding sclerite. Ovary median. Vitellaria extending along intestinal coeca confluencing both anteriorly and posteriorly as well as medially. Vaginal opening dextral and marginal with tube leading into seminal receptacle. Uterine pore near copulatory organ. Remarks This species differs from T. acleithrium and other Trianchoratus species described in this paper in having no protruding sclerite on the accessory piece, the anchors and vaginal tube are also structurally different from the others. The host of this species is taxonomically different from the host of the other Trianchoratus species. This species is named Tr i anchoratus malayensis sp.n. after Malaya.
