Table 3.

New species of rare actinomycetes from seawater reported during the period of mid 2013–2017.

Strain/Family	Nature of Sample	Isolation Medium	Ref.
Nocardioides marinquilinus/Nocardioidaceae	Coastal seawater	Marine agar (Difco)	[122]
Nocardioides salsibiostraticola/Nocardioidaceae	Seawater at a depth of 1 m	R2A agar (Difco)	[123]
Nocardioides rotundus/Nocardioidaceae	Seawater at a depth of −7001 m	Modified ZoBell 2216E agar (1.0 g yeast extract, 5.0 g tryptone, 1 L clarificated seawater and 15.0 g agar)	[124]
Cellulomonas marina/Cellulomonadaceae	Deep-seawater at a depth of 2800 m	ISP 2 medium (yeast extract 4.0 g, malt extract 10.0 g, dextrose 4.0 g, distilled water 1 L and Bacto agar 20.0 g)	[125]
Kocuria oceani/Micrococcaceae	Deep-sea hydrothermal plume water at a depth of 2800 m	ISP 2 medium (yeast extract 4.0 g, malt extract 10.0 g, dextrose 4.0 g, distilled water 1 L and Bacto agar 20.0 g) and SMPS (0.1 g peptone, 0.5 g mannitol, 3 g sea salt, 1000 mL distilled water, pH 7.5) agar, supplemented with nalidixic acid, cycloheximide and nystatin (each at 25 μg mL−1).	[126]
Pontimonas salivibrio (novel genus)/Microbacteriaceae	Seawater	Marine agar (Difco)	[36]
Tamlicoccus marinus (novel genus)/Dermacoccaceae	Seawater	SC-SW agar (1% soluble starch, 0.03% casein, 0.2% KNO3, 0.2% NaCl, 0.2% KH2PO4, 0.002% CaCO3, 0.005% MgSO4.7H2O, 0.001% FeSO4.7H2O, 1.8% agar, 60% natural seawater and 40% distilled water)	[37]
Brachybacterium aquaticum/Dermabacteraceae	Seawater	Tryptic soy agar medium (HiMedia)	[127]