Morphology Summary - Staurotheca jaederholmi
Morfologiska data för Staurotheca jaederholmi
Bestämningsnycklar
Main Ref. Peña Cantero, A.L. and W. Vervoort, 2003
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Könskaraktärer

specialiserade organ
annat utseende
andra färger
Anmärkningar

Karaktäristiska egenskaper hos juveniler och adulter

Särskilt slående egenskaper
Lateral kroppsform
Tvärsnitt
Dorsal profil av huvudet
Ögontyp
Typ av mun/snyte
Munnens placering
Diagnos Stems up to 12 cm high, polysiphonic over part of their length. Branching alternate and in one plane; sometimes anastomoses amongst the branches. Hydrothecae arranged in decussate verticils of two to four hydrothecae, forming four to eight longitudinal rows. Frequently, however, hydrothecal verticils with irregularities, and indistinct. Hydrothecae low, sunken into branches for approximately one-third of their volume. Adcauline hydrothecal wall adnate to internode for almost its entire length. Hydrothecal abcauline wall straight or slightly concave; hydrothecal aperture slightly laterally depressed; rim uneven due to the presence of an elevation of the abcauline hydrothecal wall, aperture only slightly tilted downward. Hydrotheca without mushroom-shaped diaphragm. Male and female gonothecae present. Female gonotheca arising from a stolonal process (modified branch) originating at the hydrothecal base. This process provided with alternately arranged, isolated hydrothecae with one gonotheca at the base of each hydrotheca. Female gonotheca pear-shaped, sometimes provided with a few spine-shaped projections. Gonothecal aperture not observed. Male gonothecae inserted directly at the hydrothecal base and arranged in close proximity on the branches; gonotheca fusiform with a small circular aperture at the distal end.
Ease of Identification likely to be confused with closely related species.

Meristiska karaktäristika för Staurotheca jaederholmi

Sidolinjer avbruten: No
Fjäll längs sidolinje
Porbärande fjäll längs sidolinje
Fjäll i lateralserie
Antal rader fjäll ovan sidolinje
Antal rader fjäll under sidolinje
Fjäll runt stjärtfensspole
Skäggtömmar
Gälspringor (endast hos hajar/rockor)
Gälräfständer
på undre del av gälbåge
på övre del av gälbåge
totalt
Ryggkotor
preanal
totalt

Fenor

Ryggfena/fenor

Egenskaper
Antal fenor
Antal småfenor ryggfena   
Ventral  
Totalt antal hårda fenstrålar
Totalt antal mjuka fenstrålar
Fettfena

Stjärtfena

Egenskaper

Analfena/fenor

Antal fenor
Totalt antal hårda fenstrålar
Totalt antal mjuka fenstrålar

Pariga fenor

Bröstfena Egenskaper  
Fenstrålar hårda     
Fenstrålar mjuka   
Bukfenor Egenskaper  
Position    
Fenstrålar hårda     
Fenstrålar mjuka   
Ref. [ e.g. 3742]
Glossary [ e.g. cnidaria]
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