Research Article

Contribution to the Taxonomy and Distribution of Six Shark Species (Chondrichthyes, Elasmobranchii) from the Gulf of Thailand

Table 3

Measurements of Hemigaleus microstoma, ZMH 25682. Weight: 1490 g, sex: male.

Measurement[mm][%TL]

TL, total length790100.0
FOR, fork length66083.5
PRC, precaudal length60576.6
PD2, pre-D2-length47560.1
PD1, pre-D1-length22027.8
HDL, head length15519.6
PG1, prebranchial length11915.1
PDP, prespiracular length8010.1
POB, preorbital length567.1
PP1, prepectoral length14618.5
PP2, prepelvic length34043.0
SVL, snout—anterior vent length35544.9
PAL, preanal fin length49062.0
IDS, interdorsal space20525.9
DCS, dorsal (D2)—caudal space769.6
PPS, pectoral—pelvic space19024.1
PAS, pelvic—anal space12015.2
ACS, anal—caudal space729.1
PCA, pelvic—caudal space22027.8
VCL, anterior vent—caudal tip l.43555.1
PRN, prenarial length253.2
POR, preoral length546.8
EYL, eye length202.5
EYH, eye height162.0
ING, intergill length 1st to last slit374.7
GS1, 1st gill slit height (unspread)222.8
GS2, 2nd gill slit height253.2
GS3, 3rd gill slit height243.0
GS4, 4th gill slit height232.9
GS5, 5th gill slit height172.2
P1A, pectoral anterior margin l.11915.1
P1B, pectoral base length344.3
P1I, pectoral inner margin length374.7
P1P, pectoral posterior margin length8210.4
P1H, pectoral height (base end to tip)10012.7
P1L, pec. length (ant. base to post. tip)688.6
SOD, subocular pocket depth60.8
CDM, dorsal caudal margin length17822.5
CPV, preventral caudal margin length8410.6
CPU, upper postventral C margin l.79.510.1
CPL, lower postventral C margin l.334.2
CFW, caudal fork width425.3
CFL, caudal fork length546.8
CST, subterminal C margin length212.7
CSW, subterminal caudal width162.0
CTR, terminal caudal margin length445.6
CTL, terminal caudal lobe length587.3
D1L, D1 total length11013.9
D1A, D1 anterior margin length11814.9
D1B, D1 base length8210.4
D1H, D1 vertical height607.6
D1I, D1 inner margin length25.53.2
D1P, D1 posterior margin length557.0
D2L, D2 total length789.9
D2A, D2 anterior margin length678.5
D2B, D2 base length567.1
D2H, D2 vertical height384.8
D2I, D2 inner margin length222.8
D2P, D2 posterior margin length415.2
P2L, pelvic total length688.6
P2A, pelvic anterior margin length658.2
P2B, pelvic base length435.4
P2H, pelvic height = max. width415.2
P2I, pelvic inner margin length273.4
P2P, pelvic posterior margin length405.1
ANL, anal fin total length627.8
ANA, anal fin anterior margin length526.6
ANB, anal fin base length445.6
ANH, anal fin vertical height293.7
ANI, anal fin inner margin length192.4
ANP, anal fin posterior margin l.303.8
HDH, head height at P origin698.7
TRH, trunk height at P base end7910.0
ABH, abdomen height at D1B end8610.9
TAH, tail height at pelvic base end567.1
CPH, caudal peduncle height22.52.8
DPI, D1 midpoint—pectoral base end9011.4
DPO, D1 midpoint—pelvic origin789.9
PDI, pelvic midpoint—D1 base end8510.8
PDO, pelvic midpoint—D2 origin11214.2
DAO, D2 origin—anal fin origin101.3
DAI, D2 base end—anal base end20.3
MOL, mouth length (arc radius)162.0
MOW, mouth width445.6
ULA, upper labial furrow length121.5
LLA, lower labial furrow length7.81.0
NOW, nostril width14.51.8
INW, internarial width293.7
ANF, anterior nasal flap length5.30.7
INO, interorbital space, “bony”486.1
SPL, spiracle length20.3
ESL, eye—spiracle space81.0
HDW, head width at middle gill slits638.0
TRW, trunk width at P base ends688.6
ABW, abdomen width at D1B end617.7
TAW, tail width at pelvic base ends526.6
CPW, C peduncle width at C origin17.52.2
CLO, clasper outer margin length567.1
CLI, clasper inner margin length638.0
CLB, clasper base width81.0
Barbel length
Width of cephalofoil