NO. ui.'i. CO I. IK) I'll: I! A OF Tin: r.AL.H'AOOS ISLANDS— LINELL. 263 



Sixteoii .spccirnciiH, collected on ("liatliaiii islaiul, (twelv<; by AlhatroHS 

 cxpcdilioii in 1<S<S8 and fonr hy \)v. G. Banrj slunv some variation iu 

 H( iiljitnrc, but are ])robably one species, distinct from t lie previous form, 

 although very closely allied. 



STOMION BAURI, new species. 



Oblonu', snbcylindrical, somewhat shininj^, bla(;k above, ventral 

 surface and legs ]»iccous, ant<Minac iiifous. Thorax (piadratc, strongly 

 convex, not narrowed at a|)ex, finely and moderately densely ])unctate; 

 sides l)roadIy rounded. I'jjytra at base scarcely broader than tliorax; 

 liumcri a<',ute; striae fe(!bly imjiressed, very hncly puncMalc; intiuvals 

 feebly convex, obsoletely minutely imnctate. Male with mcntum 

 (hmsely rufovillo86. Length, 7 to -S mm. 



Tjipe.—^o. i;'»22, IJ.S.N.M. 



Three exam|)les, colle(;ted (mi southern Albemarle island by Dr. i\. 

 Haur. The species is very distinct by its form. 



STOMION HELOPIOIDES Waterhouse. 

 Slomion hdojiioidex Watkiuujusk, Ann. Nat. Hist., 1KI.">, XVI, p. '.iO. 



Described as having the thorax transverse, not narrowed in front, 

 the elytral striae not strongly punctate and the intervals flat. Size, (» to 

 7 mm. No island is iccorded where Darwin (;oll('ct<'d this or the next 

 species. 



STOMION LAEVIGATUM Waterhouse. 

 Slomion hui if/alum Wai kkiioisi:, Ann. Nat. Hist., lsl.5, XVI, ji. 150. 

 Described as having the elytra smooth. 



Gonus AMMOPHORUS Gu^rin de Mf^neville. 

 Aiiiviopliiintx (ivf.uis, Voy. (!o(|iiiIl() Krit., 18.'{(), II, p. 'M. 



A genus allied to J'Jtdahu, from California, differing in the cylindrical 

 antennae with the last Joint truncate: Species are kiujwn from Peru, 

 Chile, Hawaiian Islands ( ?), and Galapagos Archipelago. 



AMMOPHORUS GALAPAGOENSIS Waterhouse. 



Ammo})horun f/alapaifoeniiiH WAiKunorsK, Ann. Nat. IliHt., 1845, XN'I, p. 150. 



Des<Mibed as having tlui head and thorax longitudinally strigose, the 

 latter with acute front angl(;s and nearly straight hind angles; the 

 elytra with eight sulci and e(|ual intervals, the suture raised. It was 

 collected on (Chatham island by Daiwin. 



AMMOPHORUS BIFOVEATUS Waterhouse. 



AvimoplioriiH hiforeatuK Watkkmoisk, Ann. Nat. Hist., ISI.'j, XVI, p. 31. 



Described as having the thorax rather finely punctured, the sides 

 suddenly and equally constricted before and behind with the angles 



