Line Drawing 1
 Figs. 1–5 Grillotia erinaceus (van Beneden, 1858). 1.
Scolex (BMNH 1965.2.24.92–97 from Raja montagui,
Plymouth, UK). 2. Bothria (BMNH 1965.2.54.92–97 from
Leucoraja naevus, Plymouth, UK). 3. Matur... MoreFigs. 1–5 Grillotia erinaceus (van Beneden, 1858). 1.
Scolex (BMNH 1965.2.24.92–97 from Raja montagui,
Plymouth, UK). 2. Bothria (BMNH 1965.2.54.92–97 from
Leucoraja naevus, Plymouth, UK). 3. Mature segment
(BMNH 1989.6.20.6–7, Leucoraja naevus, UK). 4. Gravid
segment (BMNH 1986.10.14.4–4, from R. clavata, Barra Head, UK). 5. Transverse section of mature segment at
level of uterine pore (BMNH 1965.2.24.92–97, from R.
montagui, Plymouth, UK). Scale-bars: 0.1 mm. Abbreviations:
do, dorsal osmoregulatory canal; m, longitudinal
muscle bundle; t, testis; u, uterus; up, uterine pore; v,
vitelline follicle; vo, ventral osmoregulatory canal |
Line Drawing 2
 Figs. 6–12 Grillotia erinaceus (van Beneden, 1858). 6.
Bulb, lateral view with upper arrow showing initial point
of attachment of retractor muscle; lower arrow showing
termination of attachment (BM... MoreFigs. 6–12 Grillotia erinaceus (van Beneden, 1858). 6.
Bulb, lateral view with upper arrow showing initial point
of attachment of retractor muscle; lower arrow showing
termination of attachment (BMNH 1989.1.25.11–12, from
Raja brachyura, UK). 7. Bulb, dorsoventral view with
upper arrow showing initial point of attachment of
retractor muscle; lower arrow showing termination of
attachment (BMNH 1965.2.24.92–97, from R. montagui,
Plymouth, UK). 8. Contracted bulb, lateral view, showing
attachment of retractor (BMNH 1935.6.5.78, plerocercus
from Gadus merlangus, Plymouth, UK). 9. Terminal
genitalia (MNHN Bd 28, 67, from R. montagui, Concarneau,
France). 10. Longitudinal section of mature segment
at level of hermaphroditic sac, showing both cirrus and
vagina within sac (MNHN Bd 28, 70, Leucoraja naevus,
Irish Sea). 11. Longitudinal section of mature segment at
level of hermaphroditic sac, lateral to figure 11, showing
hermaphroditic duct within sac (MNHN Bd 28, 70, from L.
naevus, Irish Sea). 12. Hooks 1¢ from bothrial surface of
tentacle numbered 1–6 ascending from base (BMNH
1965.2.54.92–97 from L. naevus, Plymouth, UK). Scalebars:
6–11, 0.1 mm; 12, 0.01 mm. Abbreviations: c, cirrus;
do, dorsal osmoregulatory canal; es, external seminal
vesicle; ga, genital atrium; hd, hermaphroditic duct; hs,
hermaphroditic sac; es, external seminal vesicle; is, internal
seminal vesicle; j, junction of vagina with cirrus; u, uterus;
up, uterine pore; va, vagina; vo, ventral osmoregulatory
canal |
Photo Micrograph
 Figs. 13–16 Grillotia erinaceus (van Beneden, 1858). 13.
External surface of tentacle, basal region, bothrial surface
on right hand side (specimen from Raja montagui,
Plymouth, UK, BMNH 1965.2.24.9... MoreFigs. 13–16 Grillotia erinaceus (van Beneden, 1858). 13.
External surface of tentacle, basal region, bothrial surface
on right hand side (specimen from Raja montagui,
Plymouth, UK, BMNH 1965.2.24.92–97). 14. Antibothrial
surface of tentacle, basal region, internal surface on left
hand side (specimen from Leucoraja naevus, Plymouth, UK, BMNH 1965.2.84.92–97). 15. Antibothrial surface of
tentacle, metabasal region, 14 rows beyond base, internal
surface on left hand side (specimen from L. naevus,
Plymouth, UK, BMNH 1965.2.84.92–97). 16. Profiles of
hooks of principal rows (1–4) and element from band of
hooks (B). Scale-bars: 0.01 mm |
Scanning Electron Micrograph
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