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| | KEY TO GENERA OCCURRING IN THE AREA: |
 | | Tripterygiidae: three separate dorsal fins present, two with flexible spines and one with soft rays; cirri may be present on eye. | | | Blenniidae: body without scales; dorsal fin continuous, with fewer than 20 flexible spines and 12 or more soft rays; cirri may be present on eye and on nape. | | | Head depressed; second dorsal fin with 1 spine and 10 to 13 soft rays....... |
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http://gobiidae.com/FAO_WA_gobies.htm
(4544 words)
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| | Bioline International Official Site (site up-dated regularly) |
| | The holotype of crassiceps (MCZ 28314) is in poor condition; all the fins are broken and its skin stiff and shrivelled. | | | pseudotaeniatus differs in lacking a bar on the caudal peduncle, in having a second body bar that does not extend onto the anal fin, 3 median predorsal scales, 9-11 developed rakers, a dark intestine, and in lacking a dark ocellus above the pectoral fin. | | | Colour in life: similar to pattern in alcohol; body whitish with silver on ventral part and on side of head. |
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http://www.bioline.org.br/request?sm03001
(15384 words)
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| | Keys |
| | Dorsal fin without spines or, if spines present, not isolated but joined by a membrane --> 8 | | | Short dorsal fin spines 4-7; short pelvic spines (both less than eye diameter); scutes weakly developed = Culaea inconstans (Brook Stickleback/Épinoche à cinq épines) [widespread] | | | Scales present; no barbels, or barbels not in 4 pairs; no very strong fin spines --> 11 |
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http://www.briancoad.com/ncr/keys.htm
(5098 words)
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| | Fish Families ID |
| | 24A Body scale-less, with prickles only, pelvic fin with only 3-4 soft rays, no anal spine. | | | 21B No adipose fin; more than two dorsal spines......................... | | | 21A Adipose fin developed, only two dorsal spines |
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http://www.nacs.net/~zeiglerp/fish_families_id.htm
(664 words)
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| | Identification Key to Native Freshwater Fishes of Peninsular Florida |
| | 12b) Front of head not depressed, without 8 long barbels; pectoral fins lack strong, serrated spines, body scaled.......................................................................................................... | | | 12a) Front of head depressed, with 8 long barbels; pectoral fins with strong serrated spines; body without scales.......................................................................................................... | | | 17a) Spines absent in dorsal and anal fins......................................................................... |
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http://www.flmnh.ufl.edu/fish/southflorida/everglades/marshes/fishkeyedu.html
(2175 words)
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| | American Zoologist: Function of the caudal fin during locomotion in fishes: Kinematics, flow visualization, and ... |
| | Broad evolutionary patterns of caudal fin structure have now been relatively well documented in fishes, and the internal anatomy of the caudal fin is a common source of characters for phylogenetic analysis (Patterson, 1968, 1973; Schultze and Arratia, 1986, 1988; Arratia, 1991). | | | As such, the morphology of the caudal fin may influence the forces exerted on the fluid by a swimming fish and in turn the reaction forces experienced by the body during locomotion. | | | This basic structure of the caudal fin represents a fundamental design feature of vertebrates that predates the origin of jaws and is found in both agnathans and gnathostomes. |
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http://www.findarticles.com/p/articles/mi_qa3746/is_200002/ai_n8878436
(1214 words)
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| | McDowall--Principal caudal fin rays in galaxioid fishes |
| | The consistent relationship to these skeletal elements suggests that the principal caudal fin ray count is a character of fundamental nature for the galaxioid fishes, giving it particular phylogenetic significance in that group. | | | The most anterior (or ventral) principal ray is supported by the parhypural while the posterior (or uppermost) principal ray lies immediately below the point at which the notochord emerges from the truncated posterior end of the last caudal vertebra. | | | PDF file of entire paper: medium quality (944K); (scanned from paper original: notes about this process) |
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http://www.rsnz.org/publish/nzjz/2001/27.php
(135 words)
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| | Biologybase: External Fish Anatomy: Caudal Fin |
| | In some species it's has a simple circular edge, in others it may me long and ribbon like. | | | Often called the tail fin, it provides the main power for forward movement. | | | Caudal fin - a single fin in most fishes, in the selectively bred goldfish illustrated it is a double fin, cause by a human selected genetic mutation. |
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http://www.interaktv.com/fishanat/caudal.html
(67 words)
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| | [No title] |
| | The basic caudal shape is round with a diameter of 4/10 of the body length. | | | The rear edge is concave and its length corresponds to 8/10 of the body length, it may not be less than 5/10 of the total body-length. | | | The basic oval part of the caudal fin may be colourless and reach a maximum length at 4/10 of the body length. |
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http://hem.passagen.se/mikeno/english/texter/estand.htm
(857 words)
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| | FishFamilies |
| | Dorsal and anal fins with 2 or 3 weak spines. | | | Cottidae ‑ (sculpins) pectoral fins much expanded; body without scales; dorsal fin with more than 6 spines; pelvic fin I 3‑4; no anal spines. | | | Anal and dorsal fins with one or more weak spines. |
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http://pages.slu.edu/faculty/aspinwalln/fishfamilieswebpage.htm
(720 words)
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| | Angelfish Index |
| | The caudal fin is clear and edged with gold. | | | The caudal fin is lyre shaped with large, black forks. | | | The fins are colored like the body and blend in well. |
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http://www.aqualink.com/catalogs/yangel.html
(1568 words)
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| | * Caudal fin - (Fishing): Definition |
| | Caudal peduncle -- The tapering portion of a fish's body between the posterior edge of the anal fin base and the base of the caudal fin... | | | Related Species Headwater Catfish (I. lupus) has shorter pectoral fin spine; 22-27 anal fin rays; caudal fin less deeply forked; found in Pecos River drainage in S. and W. Texas, and E... | | | The sides are marked with black blotches which become more intense towards the back. |
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http://en.mimi.hu/fishing/caudal_fin.html
(563 words)
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| | Pollachius virens caudal fin references |
| | Summary: Caudal fin symmetrical, lunate or shallowly forked. | | | 1990: Reference to family Gadidae: Pages 13 (key) - "Tail fin externally symmetrical or absent" "Tail fin present" Page 14 (key) - "Caudal fin and peduncle various..." Page 18 (text) - "...caudal fin externally symmetrical." Nelson 1994: Reference to subfamily Gadinae: Page (text) - "...caudal fin truncate or slightly forked..." |
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http://vm.cfsan.fda.gov/~frf/rfe3ap16.html
(58 words)
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| | Aquaria Central - pearl gourami caudal fin |
| | The male anal fin develops these "extentions" which make the fin look pretty rough, but it is normal. | | | I don't see it as often in the females though. | | | I don't think any other fish in the tank are nipping him. |
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http://www.aquariacentral.com/forums/printthread.php?t=17799
(127 words)
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| | Field Char |
| | narrow caudal peduncle and triangular tail, not forked. | | | Dorsal and anal fins: Each has a single, stout, toothed spine. | | | Body: Ventral side has sharply pointed scales (like a saw-toothed edge). |
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http://www-personal.umich.edu/~pwebb/LesChen/species.html
(658 words)
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| | Lutjanus synagris caudal fin references |
| | 1983:Page 603 (text) - "...the caudal fin varies from deeply forked to truncate." "Lateral line scales extend onto the caudal fin base, but not to its edge." Eschmeyer and Herald 1983: Page 215 (text) - "Caudal fin square-cut to forked." Masuda et al. | | | 1991: Page 166 (text) - "...posterior margin of caudal fin forked, sometimes concave..." Moyle and Cech 1988: Page 293 (text) - "...slightly forked tail..." | | | References to Lutjanus synagris (Linnaeus, 1758): Jordan and Evermann 1898: Page 1248 (as Neomaenis synagris) (key) - "Caudal not deeply forked..." Page 1270 (text) - "...caudal moderately forked, the upper lobe the longer, 1 ½ length of middle rays, which are 2 in head..." Allen 1985: Page 120 (text) - "...caudal fin emarginate." |
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http://vm.cfsan.fda.gov/~frf/rfe3ls16.html
(212 words)
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| | Butterfly Fish Index |
| | There also exists a second section which is in the center of the body and has perpendicular stripes. | | | The body is pearly-white with faint, yellow chevron markings pointed towards the head. | | | It has a white body with a black upper-rear portion, which is diagonally shaped and runs through the dorsal and some of the anal fin. |
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http://www.aqualink.com/catalogs/ybutter2.html
(1534 words)
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| | McDowall-Enumeration of principal caudal fin rays |
| | Abstract A protocol for enumeration of the principal caudal fin rays in teleost fishes is suggested, in which fin rays are numbered in a ventral-dorsal but antero-postero direction, as are the hypurals in the caudal fin skeleton. | | | Z02032 Received 30 September 2002; accepted 18 March 2003; Online publication date 8 September 2003 | | | Protocols for enumerating the principal caudal fin rays of fishes |
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http://www.rsnz.org/publish/nzjz/2003/026.php
(88 words)
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