Table 1.

Morphological characters of D. marmorata from Maliakos Gulf, Greece and percentages against disc width (DW), following previously proposed biometric measurements. The total and eviscerated weight of the animal are also included in grams (g).

Characters	mm	% to DW	g
Total length	330.00	-
Disc length	160.00	85.11
Disc width	188.00	100.00
Interorbital distance	27.11	14.42
Interspiracular distance	32.15	17.10
Orbit length	17.30	9.20
Spiracle length	13.86	7.37
Preorbital length	38.36	20.40
Prespiracle length	52.17	27.75
Pelvic anterior length	33.56	17.85
Pelvic width	21.69	11.54
Prenasal length	28.77	15.30
Preoral length	37.37	19.88
Internarial length	19.19	10.21
Nasal curtain length	10.09	5.37
Nasal curtain width	20.85	11.09
Mouth width	20.86	11.10
Distance between 1st gill slits	37.26	19.82
Distance between 5th gill slits	24.00	12.77
Snout to 1st gill length	54.61	29.05
Width of tail at cloaca	13.25	7.05
Width of tail at sting origin	6.76	3.60
Snout to cloaca length	145.00	77.13
Cloaca to tail tip length	195.00	103.72
Cloaca to sting origin	79.61	42.35
Pectoral anterior length	120.00	63.83
Pectoral posterior length	115.00	61.17
Clapser external length	7.71	4.10
Clasper internal length	13.66	7.27
Total weight			171.80
Eviscerated weight			151.60