Global Cestode DatabaseCestode Scientific Name
| Species ID | 4803 |
|---|---|
| Order | Trypanorhyncha |
| Family | Lacistorhynchidae |
| Subfamily | |
| Genus | Grillotia |
| Species | similis |
| Authority | (Linton, 1908) Caira & Gavarrino, 1990 |
| Taxonomic Status | Synonym |
| Valid Name | Paragrillotia similis (Linton, 1908) Dollfus, 1969 |
| Synonyms | Rhynchobothrium simile Linton, 1908; Grillotia (Paragrillotia) simmonsi Dollfus, 1969 |
| Genus Record | No |
| Type Species | No |
| Verified | Yes |
| Verified By | I. Beveridge |
| Citation(s) |
Linton, E. 1908. IX. Helminth fauna of the Dry Tortugas. I. Cestodes. Publication No. 102, Papers from the Tortugas Laboratory of the Carnegie Institution of Washington 1: 157-190. (277) Download PDFCaira, J. N. and M. M. Gavarrino. 1990. Grillotia similis (Linton, 1908) comb. n. (Cestoda: Trypanorhyncha) from nurse sharks in the Florida Keys. Journal of the Helminthological Society of Washington 57: 15-20. (4354) Download PDF |
| Redescription |
Caira, J. N. and M. M. Gavarrino. 1990. Grillotia similis (Linton, 1908) comb. n. (Cestoda: Trypanorhyncha) from nurse sharks in the Florida Keys. Journal of the Helminthological Society of Washington 57: 15-20. (4354) Download PDF |
| Scientific Name Notes | Authority used to be (Linton, 1909)- changed to (Linton, 1908) to reflect the correct date of publication of Linton's paper, and to match the authority listed in the 2017 PBI Special Issue. |
Record Data
| Date (MM/DD/YYYY) | Action | User Name |
|---|---|---|
| 11/30/-0001 | Created | I. Beveridge |
| 05/07/2015 | Modified | |
| 05/24/2015 | Modified | I. Beveridge |
| 05/11/2016 | Modified | B. Barbeau |
| 07/26/2017 | Modified | K. Herzog |
| 08/04/2020 | Modified | P. Lopez Dineen |
Type Host
| Host Class | Elasmobranchii | ||||||
|---|---|---|---|---|---|---|---|
| Host Order | Orectolobiformes | ||||||
| Host Family | Ginglymostomatidae | ||||||
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Type Host (Literal) |
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Type Host (Valid) |
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| Additional Host(s) | |||||||
| Site in Host | spiral intestine | ||||||
| Host Notes |
Type Locality
| Country | U.S.A. |
|---|---|
| Body of Water | Atlantic Ocean |
| Island(s) | |
| City/Region | Dry Tortugas, Florida |
| Coordinates | |
| DD Latitude | |
| DD Longitude | |
| Additional Localities | |
| Locality Notes | Additional localities: Sarasota, Florida (Dollfus 1969); Lower Natacumbe Key, Florida (Caira & Gavarrino 1990) |
Specimens
| Type Material | USNPC 8993 (types, Linton 1908) |
|---|---|
| Total Number of Type Specimens | |
| Voucher Material | HWML 31165-7 and MNHN BD 28: 83-84 (vouchers, Dollfus 1969); USNPC 80896 (vouchers, Caira & Gavarrino 1990) |
| Specimen Notes |
Data are given as in original description unless otherwise indicated.
Plate 5. Rhynchobothrium simile sp. nov., from Ginglimostoma cirratum. 30. Head, neck and anterior part of strobile; lateral view of the head; actual diameter of neck behind head 0.6 mm. 31. Head, showing margins of bothria; diameter of neck behind head 0.65 mm. 32. Proboscis, near base; diameter, exclusive of hooks, 0.19 mm. 33. Proboscis, near base, showing side opposite to that shown in figure 32; diameter, exclusive of hooks, 0.17 mm. 34. Proboscis 0.8 mm. from base; diameter, exclusive of hooks, 0.17 mm. 35, 36. Two types of hooks shown in fig. 34, more enlarged; lengths 0.16 and 0.17 mm. 37. Last segment, in glycerin; length 2 mm. Abbreviations. b. Muscular bulbs, whose use is to evert the proboscides by pressure on fluid with which they are filled; r. a. Reproductive aperture; sh. Proboscis sheath; 
Plate 6. Rhynchobothrium simile sp. nov., continued. 38. Base of proboscis; diameter, exclusive of hooks, 0.17 mm. 
Caira & Gavarrino (1990) 
Figures I, 2. Grillotia similis. I. Mature proglottid from razor-blade section. Vitellaria and longitudinal muscle bundles are circumcortical but are drawn only to the reader's right of the dashed line. 2. Cross section through mature proglottid. Figure 3. Bothridial surface of tentacle showing location of distinctive diamond pattern of basal hooks on external surface (arrow). Figure 4. Enlarged view of distinctive basal hooks arranged as found on tentacle. VD-vas deferens, LM- longitudinal muscle bundle, V -vitellaria, NC-nerve cord, T -testis, VA- vagina, VD-uterine duct. 
Figures 5-9. Scanning electron micrographs of scolex of Grillotia similis. 5. Internal surface of tentacle. Scale
bar = 50 μm. Note hook-free region between hooks I and I '. 6. Metabasal hook s. Scale bar = 50 μm. Internal
surface is to the left. 7. Entire scolex. Scale bar = 200 μm. Note large posterior bothridial notch. 8. Metabasal hooks on external surface of tentacle. Scale bar = 50 μm. Note the sinuous band of unlabeled small hooks. Best viewed in Firefox
