LIST OF PYCNOGONIDA COLLECTED IN THE CLYDE AREA. 147 



In the course of my work at Millport I have taken the 

 following species* : — 



Pycnogonum littorale, Strom. 



Common everywhere on the shore, except on bare sand; 

 occasionally taken in shallow water. The three-legged larval 

 stage and immature young are taken on the shore in late 

 summer. I have failed to find this species in Lochs Riddon and 

 Striven. (A. M. N.) 



Endeis (Phoxichilus) spinosus (Montagu). 



Taken occasionally in the dredge and trawl on clean ground, 

 usually among hydroids ; also recorded by Mr. W. D. Henderson 

 on Laminaria in 15 fs. off Heads of Ayr (see Ann. Rep. of 

 Millport Station, 1904); Dr. W. T. Caiman, on Fairlie Sands, 

 Sept., 1906; and A. M. N. 



Phoxichilidium femoratum (Rathke). 



Common on the stony parts of the shore, also dredged in 

 shallow water. Sometimes found in company with Pycnogonum 

 in considerable numbers. A male bearing eggs, taken in March, 

 is the first case of any abnormality I have found among 

 Pycnogonida. There are only three pairs of ambulatory legs; 

 the third segment of the trunk and caudal segment are absent; 

 in their place grows a well-developed normal ambulatory leg 

 directed straight backwards ; this leg is connected with the 

 second segment of the trunk by a process similar to the lateral 

 processes which normally bear the ambulatory legs. The anus 

 is situated dorsally near the posterior end of the third coxal 

 joint of the odd leg. (A. M. N.) 



* Since this paper was read, Canon A. M. Norman, F.R.S., has read a 

 paper on ' ' The Podostomata ( = Pycnogonida) of the Temperate Atlantic 

 and Arctic Oceans," which was published in the Journal of the Linnean 

 Society, Vol. XXX., in September, 1908. In that paper he revises the 

 nomenclature, and records nearly the same species from the Clyde. I 

 have put in the revised names, leaving the older in brackets, and Canon 

 Norman's initials (A.M.N.) to each species that he has recorded. 



C 



