Fishes of the Western North Atlantic, Edizione 1,Parte 6John Tee-Van Sears Foundation for Marine Research, Yale Univ., 1948 |
Dall'interno del libro
Risultati 1-3 di 86
Pagina 143
... spines . The apparently disconnected dorsal spines of notacanths are , in reality , part of a connected fin , but a fin that is so low and so heavily sheathed by scaly skin that only the separate tips of the spines are visible without ...
... spines . The apparently disconnected dorsal spines of notacanths are , in reality , part of a connected fin , but a fin that is so low and so heavily sheathed by scaly skin that only the separate tips of the spines are visible without ...
Pagina 169
... spine is branched . Dorsal spines 26-30 ( Caribbean ) or 36-40 ( open Atlantic ) , the last spine divided into a rigid anterior portion and a flexible but not articulated posterior portion , the common base of these two portions located ...
... spine is branched . Dorsal spines 26-30 ( Caribbean ) or 36-40 ( open Atlantic ) , the last spine divided into a rigid anterior portion and a flexible but not articulated posterior portion , the common base of these two portions located ...
Pagina 219
... spines are stiff and unsegmented , but are followed by up to 10 transi- tional spines that are obscurely to conspicuously segmented rays with hard spine - like tips . In Lipogenys , conversion of a ray into a spine appears to begin at ...
... spines are stiff and unsegmented , but are followed by up to 10 transi- tional spines that are obscurely to conspicuously segmented rays with hard spine - like tips . In Lipogenys , conversion of a ray into a spine appears to begin at ...
Sommario
Order Heteromi Notacanthiformes By S B MCDOWELL I | 30 |
Family Lipogenyidae | 208 |
Suborder Polymixioidei | 268 |
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Fishes of the Western North Atlantic: Editorial Board: Editor-in ..., Parte 4 John Tee-Van Visualizzazione estratti - 1948 |
Parole e frasi comuni
1st dorsal fin 2nd dorsal adults Aldrovandia anal fin anal rays anus barbel base Bean body bone branchial branchiostegal membranes branchiostegal rays Bull caeca canal Caribbean caudal fin Caudal peduncle cavity Coelorhynchus depth descr distr dorsal fin dorsal ray dorsal spine FIGURE fin rays Florida FMNH frontal genus Gilbert and Hubbs Gill rakers gnathoproctal length Gulf of Mexico Günther Halosauropsis halosaurs head length Heteromi Hist hyomandibular Interorbital width Jordan and Evermann lateral line lateral-line scales Lipogenys lower jaw macrourids Madeira margin maxilla maxillary median Melamphaes nostril Notacanthidae Notacanthus oceanogr opercular orbit OREGON St orig palatine pectoral fin pectoral rays pelvic fin pelvic rays Polyacanthonotus pores posterior premaxilla preopercle preopercular Proc pyloric range ridges rissoanus scale rows South spec specimens spinules suborbital supratemporal swim bladder synon teeth tooth patch trawl U.S. nat upper jaw USNM Vaillant ventral vertebrae western North Atlantic Zool