Chromosome-level genome assembly of the horned turban snail Turbo cornutus

The horned turban snail (Turbo cornutus) is an ecologically and economically important herbivorous gastropod inhabiting nearshore rocky reef habitats. T. cornutus represents a valuable coastal fishery resource in East Asia. Here, we present a chromosome-level genome assembly for T. cornutus generated using a combination of PacBio HiFi long-read and Illumina short-read sequencing and Hi-C scaffolding. The assembled genome spanned 1.93 Gb and was organized into 18 pseudo-chromosomes, representing 99.50% of the total assembly. The contig and scaffold N50 lengths were 41.02 Mb and 104.01 Mb, respectively, with repeat sequences constituting 59.07% of the genome. A total of 28,920 protein-coding genes were predicted, and genome completeness was assessed at 99.3% using the BUSCO mollusca_odb12 dataset. This chromosome-level genome assembly provides a reference for future studies on the biology of T. cornutus, the organization of the gastropod genome, and comparative genomics.