224 ALLAN HANCOCK PACIFIC EXPEDITIONS VOL. 5 



length will not otherwise be referred to. Of the remaining 4 females 

 ranging from about 29 to 18 mm. in length, the second largest, 20 mm. 

 in median length exclusive of the rostrum, has been selected as the type, 

 U.S.N.M. No. 76394, as it best illustrates our concept of this subspecies. 



Description: In the better definition and greater length of the sub- 

 median carinae of the telson this subspecies diverges from G. festae, and 

 though to a small degree suggestive of G. bahiahondensis, it in no way 

 resembles that species in distinctness and keeling of its carinae. In only 

 one specimen are there as few as 2 spinules on the knob. The submedian 

 ridges do not to the same extent go over into the formation of an anchor 

 with the median carina as in typical festae. Unlike bahiahondensis, the 

 submedian ridges have several spines, usually 3 in a row in the length of 

 each submedian ridge ; in the type 2. 



In bahiahondensis the submedian carinae are armed with but a single 

 posterior spine and have none on the ridge of the carinae in advance of 

 the terminal one. In a number, practically all the small specimens of 

 bahiahondensis, the submedian carinae are without any armature, while 

 in no case in lalibertadensis do the submedian carinae have less than 2 

 teeth. 



The knob with but one exception is armed with a coronet of spinules 

 or prickles, as in the species proper, from 3 plus a nodule, as in the type, 

 to 4, and 4 plus a nodule ; the single exception, a small specimen, has the 

 knob armed with but 2 spinules. The intermediate carinae have off their 

 posterior ends, much as in typical festae, from 2 spines, more or less 

 behind one another, to 5 in an irregular patch; the crests on the sub- 

 median teeth also resemble festae, having as many as 5 spinules in 2 rows 

 on one side only of one specimen to as few as 2 in one row on each side ; 

 the accessory carinae were armed with 2 or 3 spinules, occasionally plus 

 an extra nodule. There were about as many specimens of one count as 

 the other. 



In no instance was a lateral lobe or tooth furnished with a spinule, 

 as in festae; in the largest of the 5 specimens discussed the right lateral 

 lobe is wanting. 



The ocular plates have some resemblance to those of festae, but yet 

 were not quite typical. One of the smallest specimens, indeed, has plates 

 somewhat resembling those of bahiahondensis, but it must be remembered 

 that the characters of small and juvenile Gonodactyli often appear to be 

 in the formative stage and so are not particularly positive in their specific 

 indications. 



