NO. 6 DECAPOD AND OTHER CRUSTACEA SCHMITT 9 



Magdalena Bay, Lower California, Mexico, July 18 (sta. 3-38) ; 

 boat dredge inside northern point of entrance to bay, between Belcher 

 Point and anchorage, 10-15 fathoms, sandy, weedy bottom, myriads 

 of amphipods. 



Lepeophtheirus dissiiuulatus Wilson 125 



These parasitic copepods were not taken in the dredge, but were 

 picked off a broom-tailed grouper, Mycteroperca xenarcha Jordan, 

 taken in the Bay by the fishing parties. 



Ncbalia bipcs (Fabricius) 1 



Penaeopsis mineri Burkenroad I c? 1 ? 



Periclimenes (Ancylocaris) Jwlmcsi Nobili 2 



Plcuroncodcs planipcs Stimpson 3 



These are fragmentary specimens regurgitated by a large black 

 sea bass caught in bay. 



Paguristes species 1$ ovig. 



Micro.phrys branchialis Rathbun ij* 1 juv. 



Cancer antennarius Stimpson 1$ juv. 



Cape San Lucas, Lower California, Mexico, July 19 (sta. 5-38) ; 

 boat dredge, 6-10 fathoms, off Punta Gorda, off rocky shore to west 

 end San Jose del Cabo Bay. 



Lepeophtheirus dissimulatits Wilson 55 



One of these five specimens was found in our dredged material ; 

 the other four were picked from the external surface and nostrils of 

 a large gulf grouper, Mycteroperca jordaui (Jenkins and Evermann), 

 taken by the fishing parties this day. 



Ogyrides species 1 



The first of the genus to be reported from the west coast of America. 

 Though very probably a new species, the material at hand does not 

 suffice for a description. 



Periclimenes (Ancylocaris) holnicsi Nobili 3 



Arcnaeus nicxicanus (Gerstaecker) 1 J 1 ij 



Pliosoma parvifrons Stimpson 4^ ij 1 juv. 



South of Cape San Lucas, Lower California, approximately 

 lat. 20 53' N., long. no° 14' W., 11 p.m., July 19, from port con- 

 denser tubes of the Houston. 



