| Pseudoceros bolool Newman & Cannon, 1994 | Aug 19, 1993 | subtidal | reef | collected by SCUBA, reef crest |
| Pseudoceros goslineri Newman & Cannon, 1994 | Aug 16, 1993 | | reef crest | collected by SCUBA, reef slope. |
| Pseudoceros laticlavus Newman & Cannon, 1994 | Aug 16, 1993 | subtidal | reef crest | collected by SCUBA, reef crest. Found on colonial ascidians, under boulders at reef crest. Rare. |
| Pseudoceros paralaticlavus Newman & Cannon, 1994 | Sep 12, 1992 | subtidal | reef crest | collected by SCUBA, reef crest. Found on yellow colonial ascidians under boulders at the reef crest. Common from Heron Island, rare from Madang. |
| Pseudoceros sapphirinus Newman & Cannon, 1994 | Aug 17, 1993 | 15m | reef slope | collected by SCUBA, reef slope at night. Found under ledges on the reef slope, especially at night. |
| Pseudoceros verecundus Newman & Cannon, 1994 | Sep 19, 1993 | subtidal | reef crest | collected by SCUBA, reef crest. Found feeding on cream-white colonial ascidians. Common from Heron Island. Rare from One Tree Island. |
| Pseudobiceros apricus Newman & Cannon, 1994 | Aug 16, 1993 | subtidal | reef crest | collected by SCUBA, reef crest. Found on pink colonial ascidians under boulders at the reef crest. Common from Heron Island, rare from One Tree Island. |
| Pseudobiceros hancockanus (Collingwood, 1876) | Aug 17, 1993 | 15 m | reef slope | collected by SCUBA, reef slope. Found under ledges on the reef slope. Common from Heron Island. One animal was found on an orange sponge and appeared to be feeding. |
| Pseudobiceros stellae Newman & Cannon, 1994 | Aug 16, 1993 | subtidal | reef crest | collected by SCUBA, reef crest. Found under boulders and out on the rubble at night on the reef crest. Common from Heron Island, rare from One Tree Island and Madang. |
| Pseudobiceros uniarborensis Newman & Cannon, 1994 | Sep 13, 1992 | subtidal | reef crest | collected by SCUBA, reef crest. Found under boulders at the reef crest and slope. Abundant from Heron and One Tree Island, rare from Madang. |
| Pseudobiceros uniarborensis Newman & Cannon, 1994 | Sep 11, 1992 | subtidal | reef crest | collected by SCUBA, reef crest. Found under boulders at the reef crest and slope. Abundant from Heron and One Tree Island, rare from Madang. |
| Pseudobiceros uniarborensis Newman & Cannon, 1994 | Jan 30, 1993 | subtidal | reef crest | collected by SCUBA, reef crest. Found under boulders at the reef crest and slope. Abundant from Heron and One Tree Island, rare from Madang. |
| Pseudobiceros uniarborensis Newman & Cannon, 1994 | Sep 13, 1992 | subtidal | reef crest | collected by SCUBA, reef crest. Found under boulders at the reef crest and slope. Abundant from Heron and One Tree Island, rare from Madang. |
| Pseudobiceros uniarborensis Newman & Cannon, 1994 | Aug 13, 1993 | subtidal | reef crest | collected by SCUBA, reef crest. Found under boulders at the reef crest and slope. Abundant from Heron and One Tree Island, rare from Madang. |
| Pseudoceros bifurcus Prudhoe, 1989 | Sep 12, 1992 | 18 m | reef slope | collected by SCUBA, reef slope. Found under ledges (usually on ascidian prey) on reef slope. Abundant from Heron Island, rare from One Tree Island |
| Pseudobiceros gratus (Kato, 1937) | Aug 17, 1993 | subtidal | reef crest | Collected by SCBA from reef crest. |
| Pseudoceros cruentus Newman & Cannon, 1998 | Sep 14, 1992 | | | under rubble, reef crest. Found associated with colonial ascidians under rubble ath the reef crest. Abundant. |
| Pseudoceros cruentus Newman & Cannon, 1998 | Jun 15, 1992 | | | under rubble, reef crest. |
| Pseudoceros cruentus Newman & Cannon, 1998 | Feb 4, 1992 | | | |
| Pseudoceros cruentus Newman & Cannon, 1998 | Feb 22, 1992 | | | |
| Pseudoceros irretitus Newman & Cannon, 1998 | Jun 14, 1992 | | | under rubble, reef crest. |
| Pseudoceros irretitus Newman & Cannon, 1998 | Jun 11, 1992 | | | under rubble, reef crest. |
| Pseudoceros irretitus Newman & Cannon, 1998 | Sep 11, 1992 | | | under rubble on ascidians, reef crest. |
| Pseudoceros irretitus Newman & Cannon, 1998 | Aug 13, 1993 | | | |
| Pseudoceros irretitus Newman & Cannon, 1998 | Aug 14, 1993 | | | |
| Pseudoceros irretitus Newman & Cannon, 1998 | Aug 19, 1993 | | | |
| Pseudoceros irretitus Newman & Cannon, 1998 | Sep 9, 1996 | | | |
| Pseudoceros rubronanus Newman & Cannon, 1998 | Sep 14, 1992 | | | under rubble, reef crest. |
| Pseudoceros rubronanus Newman & Cannon, 1998 | Aug 19, 1993 | | | |
| Pseudoceros sp. 1 Newman & Cannon, 1998 | Sep 7, 1996 | 12 m | | on ledge, outer reef slope. |
| Phrikoceros lizardensis (Newman & Cannon, 1996) | Aug 16, 1993 | | | reef crest. |
| Imogine lesteri Jennings & Newman, 1996 | Sep 15, 1992 | | | reef crest. |
| Stylochus stellatus Jennings & Newman, 1996 | Aug 15, 1993 | | | |
| Pseudoceros confusus Newman & Cannon, 1995 | Sep 15, 1992 | | | reef crest. |
| Pseudoceros confusus Newman & Cannon, 1995 | Sep 12, 1992 | | | reef crest. |
| Pseudoceros confusus Newman & Cannon, 1995 | Sep 13, 1992 | | | reef crest. |
| Pseudoceros confusus Newman & Cannon, 1995 | Aug 13, 1993 | | | reef crest. |
| Pseudoceros confusus Newman & Cannon, 1995 | Aug 14, 1993 | | | reef crest. |
| Pseudoceros confusus Newman & Cannon, 1995 | Aug 19, 1993 | | | reef crest. |
| Pseudoceros intermittus Newman & Cannon, 1995 | Aug 16, 1993 | | | |
| Pseudoceros intermittus Newman & Cannon, 1995 | Aug 17, 1993 | | | |
| Cycloporus guttatus Newman & Cannon, 2002 | Aug 14, 1989 | | | damaged, under rubble, reef crest |