Table:
text: Dorado Group
Members
Kilborn et al. 2005 Members of the NGC 1566 Group
Name_ Type_ R_A_J2000 Dec_J2000 Redshift_km_s Apparent_Magnitude_
IC 2049 SAB(s)d? 04h 12m 04.3s −58° 33′ 25″ 1469 ± 7 14.5
NGC 1536 SB(s)c pec 04h 10m 59.8s −56° 28′ 50″ 1217 ± 13 13.2
NGC 1543 (R)SB(l)00 04h 12m 43.2s −57° 44′ 17″ 1176 ± 7 11.5
LSBG F157-081 Irregular 04h 27m 13.7s −57° 25′ 42″ 1215 ± 7 16.7
NGC 1533 (L)SB(rs)00 04h 09m 51.8s −56° 07′ 06″ 790 ± 5 11.7
IC 2038 Sd pec 04h 08m 53.7s −55° 59′ 22″ 712 ± 52 15.5
APMBGC 157+016+068 Irregular 04h 22m 51.7s −56° 13′ 39″ 1350 ± 4 16.3

text: Dorado Group
Members
Kilborn et al. 2005 Members of the NGC 1566 Group
Name_ Type_ R_A_J2000 Dec_J2000 Redshift_km_s Apparent_Magnitude_
NGC 1581 S0- 04h 24m 44.9s −54° 56′ 31″ 1600 ± 27 13.6
NGC 1617 (R`)SAB(rs)a 04h 31m 39.5s −54° 36′ 08″ 1063 ± 21 11.4
Abell 3202 Irregular 04h 01m 15.2s −53° 29′ 23″ 1135 ± 40 16.9

Question: How many "irregular" types are there for the Dorado Group?