original description
Roux M, Pawson DL (1999) Two New Pacific Ocean Species of Hyocrinid Crinoids (Echinodermata), with Comments on Presumed Giant-Dwarf Gradients Related to Seamounts and Abyssal Plains. <i>Pacific Science</i> 53(3):289-298. [details] Available for editors
context source (Deepsea)
Roux M, Pawson DL (1999) Two New Pacific Ocean Species of Hyocrinid Crinoids (Echinodermata), with Comments on Presumed Giant-Dwarf Gradients Related to Seamounts and Abyssal Plains. <i>Pacific Science</i> 53(3):289-298. [details] Available for editors
Holotype USNM E47374, geounit Clarion Clipperton Zone [details]
From editor or global species database
Diagnosis Small Hyocrinus species with stalk length to 120 mm; aboral cup with ribbed ornamentation usually present; arms with series of two or frequently three brachials united by synostosis; first pinnule at Br4 to Br7 with a
high frequency at Br5; tegmen with conical oral ring; columnals of proximal and middle part of stalk with seven irregular small crenellae and angular stereom meshwork around axial canal. [details]
Distribution Central eastern Pacific Ocean WSW of Cabo San Lucas, Mexico; 4300-4700 m. [details]