Actinostola spp.

Actinostola spp.

MATERIAL. LV-75-9, 55.4290ºN 167.2774ºE, depth 1006 m, one specimen photographed; LV-75- 17, 55.4504ºN 167.2645ºE, depth 1992 m, one specimen photographed.

LV-82-16, 61.1787ºN 174.8704ºE, depth 415 m, one specimen photographed; LV-82-18, 61.1190ºN 174.9691ºE – 61.1195ºN 174.9650ºE, depth 677– 658 m, two specimens photographed.

PL-99-37, 59.820°N 166.598°E – 59.828°N 166. 963°E, depth 114–116 m, samples 3 and 4, two specimens collected; PL-99-39, 59.932°N 167. 083°E – 59.928°N 167.115°E, depth 128 m, samples 9 and 11, two specimens collected; PL-99-150, 61.868°N 177.188°E – 61.870°N 177.222°E, depth 130–133 m, samples 27 and 28, two specimens collected; PL-99-151, 61.848°N 177.123°E – 61.847°N 177.987°E, depth 250–254 m, sample 29, one specimen collected.

PK-37-10, 59.355°N 166.484°E – 59.354°N 166.457°E, depth 457– 442 m, sample 6, one specimen collected; PK-37-14, 60.012°N 167.596°E – 60.002°N 167.573°E, depth 247 m, sample 9, one specimen collected; PK-37-18, 60.376°N 172. 127°E – 60.368°N 172.102°E, depth 97– 93 m, sample 14, one specimen collected; PK-37-56, 61.423°N 176.327°E – 61.419°N 176.298°E, depth 340– 328 m, sample 25, one specimen collected.

VM-159, 60.0350ºN 167.9783ºE – 60.0500ºN 168.0000ºE, depth 190– 188 m, samples 17 and 18, two specimens collected; VM-177, 59.8783ºN 167.6800ºE – 59.8916ºN 167.7233ºE, depth 190– 192 m, samples 22 and 24, two specimens collected; VM-201, 59.1816ºN 165.3866ºE – 59.1850ºN 165. 3950ºE, depth 355– 310 m, sample 25, one specimen collected.

REMARKS. The genus comprises many nominal species, many of which are known only from limited number of specimens and are established on the basis of features which show a high degree of intraspecific variability. Recent works showed that most features used previously to delimitate species of Actinostola are not reliable for this purpose ( Häussermann, 2004). In this respect it is important to study photographs of live specimens in their natural habitat and in aquariums to reveal additional species specific features such as shape, color variations, mobility and behavior in aquariums ( Häussermann, 2004). In this section, under the heading Actinostola spp. , we comprise several (up to six) species of Actinostola that have not yet identified to the species level. Most of them are red, several are beige or with red spots on a beige background.