171347, gravid female, 25 mm CL, Gorda Ridge, 

 40°13.4' N, 126°30.0' W, 0TB 104, 4,260 m; 

 OSUBI 00172, female, 26 mm CL, stn TP-9, 

 45°01.1' N, 135°12.6' W, BMT 308, 3,932 m. 



Remarks. — The Oregon specimens are indistin- 

 guishable from those described by Khodkina 

 (1973). Munidopsis verrucosus is very similar to 

 M. granosa, but differs in having an epipodite on 

 the cheliped, setae on the tubercles of the 

 carapace, plumose setae on portions of the 

 chelipeds and pereiopods, no small antennal tooth, 

 and no dorsal carina on the rostrum. 



Distribution. — Khodkina (1973) collected three 

 male specimens of M. verrucosus (33.8 mm, 34.8 

 mm, and 40.6 mm CL) from the Atakamsky 

 Trench off Antofagasta, Chile, at two stations (lat. 

 23°47.1' S, long. 71°03.2' W, 4,300 m, and lat. 

 23°15.1' S, long. 7r39.1' W, 4,880 m). The two 

 Oregon specimens were also found at great 

 depths— 3,932 m on Tufts Plain and 4,194 m on 

 Gorda Ridge off northern California. Alcock 

 (1901) collected one male specimen of Munidopsis 

 granosa from 2,812 m in the Bay of Bengal. 



Munidopsis latirostris (Henderson) 

 Faxon 1895 



Elasmonotus latifrons. Henderson 1885:416 (orig- 

 inal description); Henderson 1888:160 (rede- 

 scription), pi. 19, fig. 1. 



Orophorhynchus latifrons. Milne-Edwards and 

 Bouvier 1894:287 (in key to Orophorhynchus). 



Munidopsis latirostris. Faxon 1895:81-82, 99 

 (changed name because genus synonomy caused 

 prior usage of M. latifrons). 



Material.— USNM 21285, female, 15 mm CL, Al- 

 batross stn 3381, 4°56.0' N, 80°52.5' W, 3,243 m; 

 MCZ 4563, female, 16 mm Ch, Albatross stn 3391, 

 7°15.0' N, 79°36.0' W, 280 m; USNM 171341, 14 

 specimens, stn CP-l-E, 44°28.2' N, 125°32.3' W, 

 0TB 50, 2,800 m; OSUBI 00190, 28 specimens, stn 

 CP-l-E, 44°35.7' N, 125°34.3' W, 0TB 155, 2,830 

 m; OSUBI 00191, gravid female, 23 mm CL, male, 

 22 mm CL, male, 20 mm CL, stn C-P-3E Channel, 

 44°41.2' N, 127°21.2' W, BMT 407, 3,041 m; 541 

 uncataloged specimens from off Oregon, smallest 

 ovigerous female 18 mm CL. 



Remarks. — The characteristics of the Oregon 

 specimens agree with those of the USNM and the 



FISHERYBULLETIN: VOL. 78, NO. 1 



MCZ specimens, but differ slightly from the type 

 description (Henderson 1888). The "two slightly 

 rounded elevations" at the base of the rostrum on 

 the gastric area are blunt spines in the observed 

 specimens. The "faint median carina" on the ros- 

 trum is a definite rounded ridge extending from 

 the end of the rostrum to the blunt gastric spines 

 (Figure 8). 



The following observations are added to Hen- 

 derson's description of M. latirostris. The basal 

 segment of the antennular peduncle is swollen 

 with two outer spines. The basal segment of the 

 antennal peduncle has an outer tooth and an inner 

 spine; the second segment has an outer stout tooth. 

 The meri of the ambulatory legs have dorsal ridges 

 with setae on the anterior side. Epipods are pre- 

 sent on the chelipeds only. 



I I I I ' « 



J 



I cm 



Figure 8. — Munidopsis latirostris, dorsal view of carapace. 



28 



