NO. 3 GARTH : SOME NEW SPECIES OF BRACHYURAN CRABS 67 



(5) There are two tubercles, or a tubercle and a boss, on the 

 median line just above the posterior margin instead of a 

 single tubercle. 



(6) The male cheliped is considerably longer than the carapace, 

 including the long rostrum, instead of the same length, its 

 merus reaching the middle of the rostrum instead of the 

 level of the postorbital spine. 



(7) The merus of the third maxilliped is irregular in outline, 

 produced on either side of the maxillary palp, and inserting 

 deeply on the outer border of the ischium, instead of squarish 

 in outline with a moderate notch for the palp and an in- 

 sertion near the distal end of the ischium. (See pi. 16, fig. 3.) 



(8) The male copulate ry appendages have bifurcate curled tips in- 

 stead of single, lunate tips. (See pi. 16, figs. 2 and 5.) 



Judging from the great variability in the Atlantic species, which 

 has been separated into three named varieties, it is remarkable that the 

 eight specimens of M. maccuUochae at hand conform as remarkably as 

 they do in these important characters. In none of them do the lateral 

 spines tend to take on a bladelike appearance, the rostral horns to 

 broaden and flatten, or the constriction beneath the orbits to disappear 

 as in M. trispinosum nodipes (Desbonne) (1867). A larger series 

 might, however, exhibit greater diversity. 



The holotype specimen was covered with a soft sponge which has 

 been identified by Mr. Malcolm G. Dickinson as Hy?neniacidon 

 synapium. 



I take pleasure in naming this striking species for Dr. Irene A. 

 McCulloch, professor of zoology of The University of Southern Cali- 

 fornia, who first encouraged me in the study of marine animals. 



PARTHENOPIDAE 



Genus DALDORFIA Rathbun 



Daldorfia garthi Glassell, new species 



Plate 17, Figs. 1-11 



Parthenope (Pseudolambrus) excavata (Stimpson), Boone, Zoologica, 

 N. Y. Zool. Soc, vol. 8, no. 4, 1927, p. 173, text fig. 58. 

 Type: Male, holotype. Cat. No. 3811, Allan Hancock Foundation, 

 The University of Southern California, from Sulivan Bay, James Island, 



