Lissodendoryx (Lissodendoryx) littoralis n. sp.

Table 4, Figure 2

Diagnosis. Encrusting on mud-covered pebbles on intertidal mudflat, mostly buried in mud with surface fistulae rising above mud. Main body of the sponge grows by coalescence of fistulae.

Etymology. The species name derives from the intertidal habitat of the sponge.

Material Examined. Holotype: RBCM holotype 019-00102-001, Stn. BO 18-07, Ladysmith Harbour, BC, 49° 1.484’ N / 123° 50.889’ W, 13 Aug 2018, coll. B. Ott, R. Harbo, low littoral, 1 specimen.

Other material examined. RBCM 019-00103 - 001, Stn . BO 16-05, Head of Ladysmith Harbour, 49° 1.484’ N / 123° 50.889’ W, coll. B. Ott, R. Harbo, 4 Aug 2016, low littoral, 1 specimen ; four stations were sampled at Bush Creek, Ladysmith Harbour, 49° 1.072’ N / 123° 50.567’ W, coll. B. Ott, R. Harbo, R. Waters, 10 Sep 2018, low littoral , RBCM 019-00104 - 001, Stn . BO 18-03, 1 specimen; RBCM 019-00104 - 002,, Stn . BO 18-04, 1 specimen; RBCM 019-00104 - 003, Stn . BO 18-05, 1 specimen; RBCM 019-00104 - 004, Stn . BO 18-09 a, 2 specimens .