1916 Pomona Journal of Entomology and Zoology, Vol. VIIL No. L Mar. 



A Remarkable Pycnogonid 



William A. Hilton 



In a collection of a thousand pycnogonids obtained at Laguna 

 Beach and nearby a single specimen of the species here described was 

 found. This was taken near Laguna under a stone at low tide. The 

 two-jointed proboscis, the segmented body, the long tapering legs 

 with their peculiar spines and hairs, these and other features were 



distinctive. 



After searching through the rather extensive literature of this 

 group it was found that few species resembled this one. Epeci- 

 ally was the proboscis different. The genus Ascorhynchus estab- 

 lished by Sars in 1876 seems very close to it, but there are a 

 number of slight differences. No species in this genus is like it. 

 The genus Eurycyde, Schodte, 1857, as described by Sars in his 

 great work of 1891 seems to fit this specimen exactly. The species 

 E. hispada Kroyer, as described and figured by Sars seems at first 

 to be nearly the same as the specimen at hand, but a careful examina- 

 tion shows numerous specific differences. Sars considers this E. 

 hispada the only species of the genus described at that time, 1891. 

 I have found no species of this genus described since. E. hispada 

 Kr. has been found on the coast of Greenland, Finmark, Nordland, 

 in the Kara sea; at a depth of 50 to 191 fathom.s. 



Eurycyde spinosa n. sp. 



Type specimen — a female in the collection of Pomona College. 

 Total length 3.085 mm. Extent from side to side 3.6 mm. (ob- 

 tained from a preserved specimen mounted on a slide). Collected 

 at low tide under a rock. Two Rock Bay, Taguna Beach, Califor- 

 nia, September, 1915. 



Trunk rather broad. Lateral processes long, swollen^ caudallv. 

 Segments of trunk plainly marked from each other. Chitin thick. 

 Caudal segment long slender. Tt projects upwards at a moderate 

 angle and bears four large hairs or spines near the end, two of these 

 are central, two are more lateral. 



