IC  1438  22 16 29.2 -21 25 52   11 HII regions 7 and 8 comprise the nucleus.
NGC  278  00 52 04.4 +47 33 01   21 HII regions 4, 6, and 11 comprise the nucleus; HII regions 15, 16, and 17 are extraneous to the ring.
NGC  473  01 19 55.1 +16 32 40   27 HII regions 23 and 24 comprise the nucleus; HII regions 2, 3, 27, and 31 are extraneous to the ring.
NGC  613  01 34 18.2 -29 25 06   11 HII regions 2 and 11 are extraneous to the ring.
NGC 1300  03 19 41.1 -19 24 41   12 HII region 9 is the nucleus.
NGC 1343  03 37 49.7 +72 34 16   20 HII regions 13 and 14 comprise the nucleus; HII region 15 is extraneous to the ring.
NGC 1530  04 23 27.0 +75 17 45    9 HII regions 8, 9, 10, 12, 13, and 16 comprise the nucleus; HII regions 5 and 6 are extraneous to the ring.
NGC 4303  12 21 55.0 +04 28 29    7 HII region 1 comprises the nucleus.
NGC 4313  12 22 38.6 +11 48 03   10 HII region 6 comprises the nucleus.
NGC 5248  13 37 32.2 +08 53 06   19 HII region 1 comprises the nucleus.
NGC 5728  14 42 23.9 -17 15 11   18 HII regions 1 and 2 comprise the nucleus; HII regions 16 and 20 are extraneous to the ring.
NGC 5905  15 15 23.6 +55 31 01    9 No nuclear or extraneous HII regions detected.
NGC 5945  15 29 45.1 +42 55 06    3 HII region 1 comprises the nucleus.
NGC 5953  15 34 32.5 +15 11 37   22 HII region 1 comprises the nucleus.
NGC 6503  17 49 26.6 +70 08 40   84 HII regions 39, 44, and 45 comprise the nucleus; HII  regions 1, 2, and 86 are extraneous to the ring.
NGC 6951  20 37 14.4 +66 06 20    8 HII region 1 comprises the nucleus.
NGC 7217  22 07 52.6 +31 21 33   22 HII regions 1 and 4 comprise the nucleus; HII regions 5 and 7 are extraneous to the ring. 
NGC 7570  23 16 44.8 +13 28 58   18 HII regions 10, 11, 12, and 13 comprise the nucleus.
NGC 7716  23 36 31.6 +00 17 50   30 HII region 16 comprises the nucleus; HII regions 9, 27, 28, and 31 are extraneous to the ring.
NGC 7742  23 44 15.9 +10 46 01   38 HII region 18 comprises the nucleus.