NO. 5 CLARK: ECHINI OF WARMER EASTERN PACIFIC 347 



Gonimaretia laevis H. L. Clark 



Plate 70, Figs. 80-Sl 



Gonimaretia laevis H. L. Clark, 1917, p. 244, pi. 161, figs. 5-7. 



This interesting Spatangoid, originally described from 3 small speci- 

 mens (24-34 mm long) is well represented in the Velero collection by 57 

 specimens and the large adults are exceptionaly handsome for a Spatang- 

 oid. The largest at hand is 42 x 36 x 18 mm, about a third larger than the 

 holotype; the smallest, not quite 10 mm long, well shows the characteristic 

 features of both genus and species. The color of the largest specimens is a 

 light fawn brown but many of the smaller ones are quite a dark brown. 

 The primary spines are not conspicuous but are very slender and quite 

 appressed. The coat of secondary spines, in the best specimens, is very 

 dense and has a silky appearance and feeling. The large pedicels near the 

 mouth are a deep brown (almost black in dry specimens). Although lack- 

 ing the diversity of color and the numerous long primaries of Lovenia. 

 this Spatangoid rivals that notable genus in the general attractiveness of 

 its appearance. 



Distribution. — Although taken at 21 stations, this very striking "sea- 

 mouse" (if it may be called by the popular name long ago given to 

 Lovenia) was found chiefly among the Channel Islands, California, and 

 up in the Gulf at least to Angel de la Guardia Island. A single specimen 

 was taken at the San Benito Islands, Mexico. One lot is labeled 814-38, a 

 station near Hood Island, Galapagos Islands, but in the absence of other 

 specimens from south of the Gulf, this label must be regarded with sus- 

 picion. There is no doubt of the specimens being young Gonimaretia for 

 they closely resemble others of the same size from the Gulf of California. 

 While occasionally taken in 3-5 fms, most specimens were dredged in 

 water of moderate depths, 20-165 fms. 



Tj,^^._U.S.N.M. No. 805. 



Type locality. — Albatross Station 2911, south of San Clemente 

 Island, California. 



Depth. — 3-165 fms. 



Specimens examined. — 57 specimens from 21 stations. 



Lovenia cordiformis A. Agassiz 

 Plate 71, Figs. 82-83 



Lovenia cordiformis A. Agassiz, 1872, p. 57. 



H. L. Clark, 1917, p. 254, pi. 161, figs. 8-12. 

 Grant and Hertlein, 1938, p. 136, pi. 13, figs. 1, 2. 

 There can be little question that this relatively common Spatangoid is 

 one of the handsomest species of the warm Eastern Pacific. It is well repre- 

 sented in the Velero collection by 100 specimens from 44 stations, but 



