SeqCode Registry
Register List https://seqco.de/r:udhxf-g0 [2026]

Pillotina corrugata sp. nov., Hollandina grandis sp. nov. and Hollandinoides gharagozlouae gen. nov. sp. nov.

Submitted by Treitli, Sebastian Cristian

Table 1: Complete list of names proposed in the current register list.

Proposed Taxon Etymology Description Parent Taxon Type Registry URL
Genus Hollandinoides [Ho.llan.di.no.i'des] N.L. fem. n. Hollandina, a genus of spirochetes; L. neut. adj. suff. -oides, resembling; N.L. neut. n. Hollandinoides, a Hollandina-like genus
Large helical cells that colonize the hindgut of the termite Reticulitermes flavipes. They can be detected with the 16S rRNA-targeted oligonucleotide probe Rf-HolD1-990 (5'-GGCTTCCCCACTATGTCAAA-3'). The type genome is from the hindgut of the termite Reticulitermes flavipes
Breznakiellaceae Hollandinoides gharagozlouaeTs seqco.de/i:54983
Species Hollandina grandis [gran'dis] L. fem. adj. grandis, large
Helical cells are rounded to oblong in cross sections, with a diameter of 0.5–0.7µm at the widest point. The length varies between 30 and 80 µm. Approx. 70–80 periplasmic flagella. The rounded protoplasmic cylinder is 0.4–0.5 µm in diameter. Members of this species colonize the hindgut of the genus Incisitermes. They can be detected with the 16S rRNA-targeted oligonucleotide probe It-Hol-183 (5'-CCATGCCACAGCACGATAAG-3'). The type genome is from the hindgut of the termite Incisitermes tabogae.

Includes all genomes that show ≥95% average nucleotide identity (ANI) to the type genome. The type genome has an estimated size of 3.72 Mbp and a GC content of 49.1 mol%.

Hollandina NCBI Assembly: GCA_054669045.1 Ts seqco.de/i:51495
Species Hollandinoides gharagozlouaeTs [gha.ra.goz.lou'ae] N.L. gen. n. gharagozlouae, of Gharagozlou, in honor of Iran Dokht Gharagozlou, an Iranian/French structural biologist
Large helical cells that colonize the hindgut of the termite Reticulitermes flavipes. They can be detected with the 16S rRNA-targeted oligonucleotide probe Rf-HolD1-990 (5'-GGCTTCCCCACTATGTCAAA-3'). The type genome is from the hindgut of the termite Reticulitermes flavipes
Hollandinoides NCBI Assembly: GCA_054965555.1 Ts seqco.de/i:54982
Species Pillotina corrugata [cor.ru.ga'ta] L. fem. part. adj. corrugata, wrinkled, corrugated
Helical cells are 0.9–1.2 µm in diameter, with 26–30 parallel ridges. The length varies between 40 and 90 µm. Approx. 70–100 periplasmic flagella. The protoplasmic cylinder is 0.4–0.5 µm in diameter. Members of this species colonize the hindgut of the genus Kalotermes. They can be detected with the 16S rRNA-targeted oligonucleotide probe Kf-Pil-1449 (5'-GCAGCGCCCTCCTTTTACAA-3'). The type genome is from Kalotermes flavicollis

Includes all genomes that show ≥95% average nucleotide identity (ANI) to the type genome. The type genome has an estimated genome size of 3.14 Mbp and a GC content of 43.2 mol%. 

Pillotina NCBI Assembly: GCA_054669185.1 Ts seqco.de/i:51288