Research Article

Glass Sponges off the Newfoundland (Northwest Atlantic): Description of a New Species of Dictyaulus (Porifera: Hexactinellida: Euplectellidae)

Table 1

Spicule dimensions (in mm) Dictyaulus romani sp. n.

Holotype Paratype
min. max.avgstd min.max.avgstd

L dermal hexactin distal ray240.0370.2520.1510.044350.1040.2110.1480.024
L dermal hexactin tangential ray250.1040.1850.1430.018280.1110.2410.1590.035
L dermal hexactin proximal ray180.1410.4810.3100.104180.0930.5250.2840.147
L atrial pentactin tangential ray60.2780.4140.3350.05070.2000.5000.3700.119
L atrial pentactin ray directed inside body40.3520.4440.3890.04040.2520.4440.3520.107
D drepanocome120.0590.0810.0740.006250.0720.1010.0920.007
d drepanocome120.0150.0190.0170.002250.0140.0200.0170.002
D floricome250.0890.1180.1050.007260.0720.1400.0970.012
d floricome250.0150.0300.0200.004260.0140.0180.0170.001
D spiny hexactin250.1780.2660.2200.025270.1330.2270.1750.024
D pappocome250.2590.3330.3000.016250.1690.2630.2160.022
d pappocome10.0160.0160.016250.0140.0260.0190.003
D large discohexaster20.1180.1410.1300.01640.0720.1080.0970.017
d large discohexaster20.0220.0360.0290.00940.0140.0160.0150.001
D small discohexaster110.0320.0650.0480.010200.0220.0540.0400.007
d small discohexaster110.0140.0200.0170.002200.0070.0170.0120.003
D discohexactin30.1850.2150.1950.017

L: length; D: diameter; d: diameter of primary rosette.