Plants: medium-sized, in mats or shelf-forming, green, glossy. Stems: creeping, irregularly pinnate; paraphyllia absent. : Secondary stem leaves spreading to squarrose, oblong or oblong-ligulate, asymmetric, undulate to flat; margins entire proximally, distinctly to slightly serrulate at apex, teeth not recurved; apex broad to rounded-truncate; costa single, 1/2–3/4 leaf length; basal laminal cells rectangular, walls pitted or not. Sexual: condition synoicous or autoicous; reproductive branches with leaflike paraphyses at base of seta; perichaetial inner leaves linear to ligulate. Seta: less than 0.05 cm. Capsule: oblong-cylindric; exostome teeth lanceolate, papillose; endostome basal membrane low, segments papillose. Spores: 13–18 µm. Fla., nearly worldwide, tropical and subtropical regions.
Species ca. 35 (2 in the flora). Neckeropsis has stem leaves with plane basal margins and secondary stem leaves with rhomboidal to elongate-rectangular distal medial cells and rectangular to rhomboidal apical cells. The seta is embedded in the vaginula, and the capsules are immersed.