462 ALLAN HANCOCK PACIFIC EXPEDITIONS VOL. 5 



Remarks. — ^Almost infinite variation is exhibited by the exhaustive 

 series of this species obtained at a great range of depths and on a variety 

 of bottoms. Only a few of them are as M^ell developed as the type of 

 Panopeus tanneri Faxon (USNM No. 20606), a synonym of M. polita, 

 from 66 fms, Cocos Island, w^ith vv^hich they w^ere compared. Distinct 

 beads on the carapace and chelipeds are characteristic. It is perhaps sig- 

 nificant that these are Wenman Island specimens, also deep water, and 

 nearest to Cocos Island. A second careful sorting under the binocular of 

 the 800 specimens revealed a number of the very similar young of Lopho- 

 panopeus maculatus Rathbun, a new record for the archipelago. 



Micropanope fraseri, new species 

 Plate 57, Figs. 1-4 



Pilumnus beebet Boone, Zoologica, vol. 8, no. 4, 1927, p. 220, text fig. 80 

 only; not pp. 219-221, exclusive of text-fig. 80, which is Micro- 

 panope xantusii (Stimpson). 



Type. — Male, holotype, and female, allotype, AHF no. 331, Allan 

 Hancock Foundation, The University of Southern California, from Black 

 Beach Anchorage, Charles Island, Galapagos Islands, shore ; January 27, 

 1933; collected by Allan Hancock Expedition of 1933 at Velero station 

 33-33. The remaining specimens, paratypes, are considered under Mate- 

 rial examined. 



Measurements. — Male holotype: length of carapace 7.4 mm, width 

 11.1 mm, length of major cheliped 13.5 mm, of major chela 8.3 mm, of 

 major dactyl 4.6 mm; female allotype: length 7.0 mm, width 10.0 mm. 



Diagnosis. — Five anterolateral spines, including the postorbital, the 

 second existing as a cluster of spinules. A similar cluster on the subhepatic 

 region. Granules of the manus of the major chela terminating in an 

 oblique line, leaving the outer distal two-thirds smooth and bare. 



Description. — Carapace one-third wider than long, smooth, flat, 

 regions faintly indicated, microscopically pubescent anteriorly, completely 

 naked posteriorly, front visible in dorsal view. Frontal lobes obliquely 

 truncate, bordered with acute granules, a shallow sulcus extending from 

 the mesogastric region to the well-defined median V. Orbits spinulous 

 above and below; two well-marked sulci above. Five anterolateral spines, 

 including the postorbital, the second existing as a cluster of spinules, the 

 posterior three largest, anteriorly directed, and with outer edges serrate, 

 their interspaces U-shaped, the greatest distance between spines 3 and 4. 

 A cluster of subhepatic spinules. 



