Teratolobus

Contents

Rev 02/22/2021

• Cuticle finely striated.

• Lateral alae with two wings; ending at level of phasmids in females and at base of terminal tail mucro in males.

• Labial region crown-shaped with six well-developed, leaflike, lips with hexaradial symmetry. Lips separated by narrow, sometimes internally sclerotised U-shaped clefts lacking guarding pieces. Each lip supported by a strong radial ridge. All lips similar in shape and size. Each lip with a minute setiform cephalic probola.

•  Labial probolae absent. Lip region with six labial and four cephalic papillae.

• Amphidial opening more or less oval.

• Stoma typically cephaloboid; cheilostom barrel-shaped; cheilorhabdia strongly sclerotised, bacilliform in median optical section. Gymnostom short cylindrical, as wide as cheilostom; gymnorhabdia sclerotised, platelike in median optical section. Stegostom cylindrical, subdivided into four sets of rhabdia.

• Pharynx cephaloboid. Basal pharyngeal bulb with strongly developed grinder.

• Phasmids located at 20-50% of tail length.

• Tail conoid, curved ventrad; tail terminus bearing a terminal mucro of different shape (simple conical, harpoon-like, arrowhead-like, forked) and size.

         Ref: Holovachov and Bostrom, 2006

Female

• Reproductive system monodelphic, prodelphic.

Male

• Reproductive system monorchic.
• Spicules paired and symmetrical. Gubernaculum plate-like, cornua crurum present.
• Genital papillae: two pairs ventrolateral precloacal; a single midventral papilla on anterior cloacal lip; one subventral pair at level of cloaca; two pairs anterior to phasmid (one pair inside lateral alae and one ventrosublateral pair); one dorsolateral, one ventrolateral and one lateral pair near tail terminus.