. Bonner zoologische Monographien. Zoology. FIG. 53. Trulliobdella bacilliformis and other "tentacled" leeches: A, Trullibdella bacillifonni (Brinkmann, 1948); B, Antarctobdella tcherniai Dollfus, 1964; C, Antarctobdella crozetensis Sawyer, 1972 (reproduced from Sawyer 1972); D, Cryobdellina bacilliformis Brinkmann, 1948 (reproduced from Brinkmann 1948); E, Ophthalmobdella bellisioi Szidat, 1965 (reproduced from Szidat 1965). near the base with 3-5 ocelli per each (Fig. 52: 2). Ocelli present in 2 fields of 2 first annuli of trache- losome, each field consisting of 5 ocelli; mouth-po
. Bonner zoologische Monographien. Zoology. FIG. 53. Trulliobdella bacilliformis and other "tentacled" leeches: A, Trullibdella bacillifonni (Brinkmann, 1948); B, Antarctobdella tcherniai Dollfus, 1964; C, Antarctobdella crozetensis Sawyer, 1972 (reproduced from Sawyer 1972); D, Cryobdellina bacilliformis Brinkmann, 1948 (reproduced from Brinkmann 1948); E, Ophthalmobdella bellisioi Szidat, 1965 (reproduced from Szidat 1965). near the base with 3-5 ocelli per each (Fig. 52: 2). Ocelli present in 2 fields of 2 first annuli of trache- losome, each field consisting of 5 ocelli; mouth-pore prior to centre. Posterior sucker small, but larger than anterior one, eccentrically attached; surface smooth, with a maximum 15 ocelli on its marginal dorsal posterior part (Fig. 52: 3). Annulation. Clitellum 5-annulate (may be addi- tional annulation of 2nd-3rd degree). Male gonopore between annuli 2 and 3, female gonopore between annuli 4 and 5. Gonopores situated on swelling of ventral surface of clitellum which evidently formed external copulatory area (Fig. 52: 4). Complete somite 3-annulate (may be additional annulation of 2nd-3rd degree). Annul us A2 consists a pair of pulsatile vesicles and two pair of segmental ocelli on dorsum and venter (Fig. 52: 5). Anus on 2nd annulus from posterior sucker (Fig. 52: 3). Coloration. Body without pigments, ocelli may be absent. 2. Digestive system (Fig. 52: 6). Base of proboscis between ganglia 2 and 3 of ventral nerve cord. Eso- phageal diverticula based after ganglion 3 and ex- tending to ganglion 5, long and voluminous. Six small crop chambers with double lateral processes which may be bifurcate also. Posterior crop caeca nontotally fused with 4 large fenestrae, possessing 5 pairs of lateral processes similar to processes of crop chambers, do not extend to posterior ganglion mass. Four in- testinal chambers small with long lateral "V"-shaped processes at their base. Fifth chamber in form of "folded organ".
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Keywords: ., bookcentury1900, bookcollectionbiodiversity, booksubjectzoology
