Description: 

• Carapace angular, hexagonal, slightly wider than long, length about 95 % maximum width, widest at anterolateral corner, over half the distance posteriorly on carapace; flattened both transversely and longitudinally, finely granular overall.

• Front wide, about 40 % maximum carapace width, medial part unknown, laterally with two long, slender spines; inner spine directed forward; outer spine directed anterolaterally and forming inner-orbital spine. 

• Orbit shallow, directed forward with stout, triangular outer-orbital spine and short intra-orbital spine, lower orbital margin with granular rim, fronto-orbital width about 65 % maximum carapace width. 

• Anterolateral margins longer than posterolateral margins, with three short and one very long, posterolaterally directed spine at anterolateral angle; posterolateral margin with granular ridge; posterior margin rimmed, concave.

• Protogastric regions small, with small spherical swellings anteriorly; hepatic regions small, rectangular, with spherical swelling anteriorly; mesogastric region with long anterior process extending almost to frontal margin, with spherical swelling at about midlength; metagastric region long, bounded by deep grooves posteriorly; urogastric region laterally constricted, bounded by large spherical swellings laterally; cardiac region triangular, with three swellings, extending almost to posterior margin of carapace; intestinal region absent. Epibranchial region arcuate, ridge-like; remainder of branchial regions undifferentiated, with longitudinal ridge subparallel to axis.

• Flanks high, pterygostomial region coarsely granular. 

• Chelipeds short, stout, nearly isochelous. 

• Chelae with stout, high, short fixed finger; movable finger slender, occluding against fixed finger at high angle; manus high, with longitudinal ridges along upper and middle surfaces; lower half of manus flattened and flange-like, with small spines along lower margin. 

• Pereiopods 4 and 5 reduced in size, pereiopod 5 subdorsal, possibly pereiopod 4 also subdorsal.

• Female sternites 1–2 fused, long; sternite 3 large; sternite 4 large, long, with central swellings along anterior margin; female gonopores on sternite 6, very large, circular; press buttons small, located at distal edge if gonopores; sternites 7 and 8 reduced. 

• Male sternite 4 large, with swellings centrally; sternite 5 with transverse ridge, press buttons anterior to sternal sutures 5/6, close to sternoabdominal cavity; sternites 5 and 6 long, wide; sternites 7 and 8 very reduced, at nearly 90 º angle to other sternites; sternal sutures 4/5 and 5/6 incomplete, 6/7 possibly incomplete, 7/8 complete.

• Male abdominal somites 3–5 fused but with notches in margin between somites; female abdominal somites all free. 

Description from: Schweitzer, C. E. and R. M. Feldmann (2011). "New fossil Brachyura (Decapoda: Homoloidea, Dorippoidea, Carpilioidea) from the United Kingdom." Bulletin of the Mizunami Fossil Museum 37: 1–11.