Holotype: Material examined from USA California, "male holotype from Southwest Riverside County Multispecies Reserve (Lake Skinner), Riverside County (33.38°N, 117.00°W), 9-12 May 2000, Tom Prentice (DMNS). Female allotype: collected from same site, 15-18 May 2000 (DMNS). Paratypes: 4 males, 2 females, collected from same site, various dates (DMNS); 4 males, 1 female, collected from same site, various dates (UCR)" (Brookhart & Cushing, 2008, p. 61).

Etymology: "Named for the collector, Tom Prentice, University of California, Riverside" (Brookhart & Cushing, 2008, p. 62).

Chelicerae Description: "fixed finger with rounded tip and typical cup like mesal ventral groove apically. No recurved area apically. Movable finger with primary tooth, two intermediate teeth, and an anterior tooth, Posterior intermediate tooth separate from the primary tooth. Fondal teeth graded I, III, II, IV ectally and I, III, II mesally. No apparent fondal notch (Fig. 51). Flagella typical of the group" (Brookhart & Cushing, 2008, p. 62).

Diagnosis: "This species differs from the closely related H. pseudotruncata in its darker overall coloration and the broader, shorter ctenidia" (Brookhart & Cushing, 2008, p. 62).