Gastrotricha

All Biocode files are based on field identifications to the best of the researcher’s ability at the time.

All Biocode files are based on field identifications to the best of the researcher’s ability at the time.

All Biocode files are based on field identifications to the best of the researcher’s ability at the time.

All Biocode files are based on field identifications to the best of the researcher’s ability at the time.

All Biocode files are based on field identifications to the best of the researcher’s ability at the time.

All Biocode files are based on field identifications to the best of the researcher’s ability at the time.

Figure 2.Gastrotricha from St. Lucia beach, South Africa. Halichaetonotus sanctaeluciae sp. n., schematic drawings A dorsal view B ventral view (locomotor cilia omitted).

Figure 2.Pseudostomella dolichopoda sp. n. schematic drawing. Habitus as seen from the ventral side. CO caudal organ CP caudal pedicle DP dorsal papillae E egg FO frontal organ PhIJ pharyngeo-intestinal junction Pp pharyngeal pores T testicle TbA anterior adhesive tubes TbDL dorsolateral adhesive tubes TbL lateral adhesive tubes TbVL ventrolateral adhesive tubes VP ventral papillae.

Figure 1.Ptychostomella lamelliphora sp. n. schematic drawings. A Habitus as seen from the dorsal side showing the internal anatomy B Habitus as seen from the ventral side. CO caudal organ CP caudal pedicle CTbV cluster of ventral adhesive tubes E egg EG epidermal gland FL fleshy lobe FO frontal organ I intestine KSO Knob-like sensory organ LS lamellate scales PhIJ pharyngeo-intestinal junction Pp pharyngeal pores T testicle TbA anterior adhesive tubes TbL lateral adhesive tubes TbV ventral adhesive tubes.

Figure 1.Kijanebalola devestiva sp. n. schematic drawings. A Dorsal habitus B Ventral habitus, showing some internal structures. a anus alt antero-lateral tuft of cephalic cilia asb anterior sensory bristle ce cephalion ct cephalic tentacle dlvb lateral band of cephalic cilia extending dorsally and ventrally e egg I-IV, first to fourth band of trunk ciliature mvb median ventral band of cephalic cilia pcl proximal canal cell lumen PhIJ pharyngeo-intestinal junction ps patch of keeled scales psb posterior sensory bristle tsp terminal spines vlt ventro-lateral band of cephalic cilia.

Figure 2.Cephalodasys dolichosomus sp. n. dorsal and ventral views of a mature adult (Lt=772, LPh=215 µm) from Main Beach, Ras Mohamed National Park, S. Sinai, Egypt; dorsal with dorsal and lateral body cilia, digestive and reproductive tracts; ventral with adhesive tubes and locomotor ciliary bands.

All Biocode files are based on field identifications to the best of the researcher’s ability at the time.

All Biocode files are based on field identifications to the best of the researcher’s ability at the time.

All Biocode files are based on field identifications to the best of the researcher’s ability at the time.

Figure 3.Gastrotricha from St. Lucia beach, South Africa. Halichaetonotus sanctaeluciae sp. n., habitus A dorsal view B ventral view. DIC photomicrographs.

Figure 3.Pseudostomella dolichopoda sp. n. DIC photomicrographs. A habitus B close-up of the anterior region, dorsal view C Close-up of the anterior region, ventral view.

Figure 1.Schematic of Lepidodasys ligni sp. n. showing the crossed-helical scale pattern and a closeup of the musculature in the caudal region. Abbreviations: cg caudal gland; cm-pc circular musculature of the posterior constriction; co caudal organ; dh dorsal sensory hairs; eg mature egg; ep epidermal gland; fo frontal organ; in intestine; is interciliary scales; lc locomotory cilia; lh lateral sensory hairs; lm longitudinal muscle; pc posterior constriction; ph pharynx; TbA anterior adhesive tubes; TbD dorsal adhesive tubes; TbL lateral adhesive tubes; TbP posterior adhesive tubes; vllm ventrolateral longitudinal muscle.

Figure 2.Kijanebalola devestiva sp. n. DIC photomicrographs. A habitus B, C close-up ventral view of theanterior region showing the ciliary bands D close-up ventral view of the mid-trunk region showing the second ciliary bands E close-up ventral view, of the posterior region, showing the fourth ciliary bands (arrowheads) and the residual patch of spined scales (arrow).

Figure 14.Tetranchyroderma rhopalotum sp. n. A dorsal and ventral views of a mature adult (Lt=344, LPh=102 µm) from the Giftun Village Spit Outside, near Hurghada, Egypt; dorsal with tetrancrous surface (over half of the body), dorsal and lateral body cilia, and dorsal adhesive tubes; ventral with digestive and reproductive tracts, other adhesive tubes, and the locomotor ciliary band B dorsal tetrancre, with a separate scale bar.

All Biocode files are based on field identifications to the best of the researcher’s ability at the time.

All Biocode files are based on field identifications to the best of the researcher’s ability at the time.

All Biocode files are based on field identifications to the best of the researcher’s ability at the time.

Figure 4.Pseudostomella dolichopoda sp. n. SEM photomicrographs. A habitus, dorsal view B habitus, ventral view; C close-up of the anterior region, dorsal view D close-up of the anterior region, ventrolateral view E close-up of the posterior region, dorsal view F close-up of the posterior region, ventral view, arrow shows the two ventrolateral adhesive tubes borne from a common base.

Figure 3.The reproductive and muscular systems of Lepidodasys ligni sp. n. A Differential interference contrast photograph of the posterior end showing the accessory reproductive organs. B, C Confocal images (47 × 0.35 µm optical sections) of the musculature of the posterior end in lateral (B) and dorsal (C) views D Closeup of the caudal organ with DIC microscopy E Lateral view of an entire specimen revealing the muscular system (73 × 0.4 µm optical sections). Abbreviations: cg caudal gland; cm-co circular muscles of the caudal organ; cm-pc circular muscles of the posterior constriction; co caudal organ; coc caudal organ canal; dlm dorsal longitudinal muscle; dllm dorsal lateral longitudinal muscle; fo frontal organ; hm helicoidal muscle (end position on midgut); lh lateral sensory hair; ph pharynx; TbP posterior adhesive tube; scm somatic circular muscles (thoughout trunk); vllm ventrolateral longitudinal muscle.