62
Fig. 3 Laterophysic connection (LC) variants among Chaetodon species represented schematically in Fig. 4 . ( a ) Dir1 —direct LC with mucoid connective tissue ( arrows ) in Chaetodon octofasciatus . Scale bar = 500 μm. ( b ) Dir2 —direct LC without mucoid connective tissue in Chaetodon
plebeius . Scale bar = 200 μm. ( c ) Ind2 —indirect LC with no mucoid connective tissue in Chaetodon
multicinctus . Scale bar = 500 μm. ( d ) Ind1 —indirect LC ( arrows ) with mucoid connective tissue in
Chaetodon kleinii . Scale bar = 200 μm. ( e ) Ind3 —indirect LC with short horns in Chaetodon ornatissimus . Note that the swim bladder horns are not present in this section (at the level of the LC),
and instead the space occupied by long horns in other species is fi lled by muscle (m) and kidney
tissue (kt). Scale bar = 500 μm. Arrows indicate the dorsal and ventral extent of the tissues that
separate the LL canal from the swim bladder horn in a , c , and e . c mucoid connective tissue (as in
d ), h swim bladder horn, kt kidney tissue, ll lateral-line canal, m muscle, n neuromast, s supracleithrum, te tunica externa, ti tunica interna (from Smith et al. 2003 , reprinted with permission of
John Wiley & Sons)
T.C. Tricas and J.F. Webb
Fig. 3 Laterophysic connection (LC) variants among Chaetodon species represented schematically in Fig. 4 . ( a ) Dir1 —direct LC with mucoid connective tissue ( arrows ) in Chaetodon octofasciatus . Scale bar = 500 μm. ( b ) Dir2 —direct LC without mucoid connective tissue in Chaetodon
plebeius . Scale bar = 200 μm. ( c ) Ind2 —indirect LC with no mucoid connective tissue in Chaetodon
multicinctus . Scale bar = 500 μm. ( d ) Ind1 —indirect LC ( arrows ) with mucoid connective tissue in
Chaetodon kleinii . Scale bar = 200 μm. ( e ) Ind3 —indirect LC with short horns in Chaetodon ornatissimus . Note that the swim bladder horns are not present in this section (at the level of the LC),
and instead the space occupied by long horns in other species is fi lled by muscle (m) and kidney
tissue (kt). Scale bar = 500 μm. Arrows indicate the dorsal and ventral extent of the tissues that
separate the LL canal from the swim bladder horn in a , c , and e . c mucoid connective tissue (as in
d ), h swim bladder horn, kt kidney tissue, ll lateral-line canal, m muscle, n neuromast, s supracleithrum, te tunica externa, ti tunica interna (from Smith et al. 2003 , reprinted with permission of
John Wiley & Sons)
T.C. Tricas and J.F. Webb