86 TROGLODYTIDA. 
b. Subtus striati aut fasciatt. 
oc. Guttur totum album nigro longitudinaliter striatum. 
6. Thryophilus thoracicus. (Tab. VI. figg. 1, 2.) 
Thryothorus thoracicus, Salv. P. Z. 8. 1864, p. 580", 1867, p. 184°; Lawr. Ann. Lyc. N. Y. ix. p 93°. 
Thryothorus brunneus, Lawr. Ann. Lyc. N.Y. viii. p. 179°. 
Supra cinnamomeo-brunneus, pileo cinerascentiore, uropygio rufescentiore ; capitis collique lateribus cum gula 
et pectore albis, plumis singulis undique nigro marginatis; alis extus, cauda et crisso brunneis nigro trans- 
fasciatis ; ventre brunneo, lateribus rufescentioribus ; rostro et pedibus plumbeis. Long. tota 4-6, ale 2-4, 
caude 1-7, rostri a rictu 0-85, tarsi 0-8. (Descr. exempl. typici ex Tucurriqui, Costa Rica. Mus. nostr.) 
Hab. Nicaracua, Greytown (Holland*); Costa Rica, Tucurriqui (Arcé1, Zeledon’*), 
Santa Rosa (Carmiol®) ; Panama, Santiago de Veraguas (Arcé?). 
At first sight this species bears a strong resemblance in coloration to T’hryothorus 
maculipectus, but differs in many respects, in having barred wings and in the distinct 
character of the markings of the chest. At one time! we considered these two species 
to belong to the same group of Wrens; but a closer examination shows that, while 
T. thoracicus has the open nostril of Thryophilus, T. maculipectus has the nostril with 
overlying membrane, as in true Thryothorus. 
Through Mr. Lawrence’s kindness we have had an opportunity of examining 
his type of Thryothorus brunneus*, and found that it is undoubtedly an immature 
example of the present species. We have figured this type ; and the plate will, we think, 
show the correctness of our views respecting it. Thryophilus thoracicus seems to be by 
no means a common species, as but few specimens have come under our notice. Our own 
types, one of which we now figure, were obtained by Arcé near Tucurriqui in Costa Rica. 
c. Subtus corpus plus minusve nigro transfasciatum. 
7. Thryophilus pleurostictus. 
Thryothorus pleurostictus, Scl. & Salv. Ibis, 1860, p. 30’; P. Z. 8. 1870, p. 551°; Scl. Cat. Am. B. 
p- 21, t. 4°; Lawr. Bull. U.S. Nat. Mus. no. 4, p. 13°. 
Thryophilus pleurostictus, Lawr. Ann. Lye. N.Y. ix. p. 92’. 
Umbrino-brunneus, alis extus et cauda nigro transfasciatis ; superciliis distinctis et corpore subtus albis, capitis 
collique lateribus albis nigro variegatis, hypochondriis et crisso late nigro transvittatis ; rostro plumbeo, 
mandibule basi albida; pedibus pallide corylinis. Long. tota 5:2, ale 2°5, caude 22, rostri a rictu 
0-95, tarsi 1:0. (Descr. exempl. ex Bebedero, Costa Rica. Mus. nostr.) 
Hab. Mexico, San Juan del Rio (Rébouch 2), Santa Efigenia, Guichicovi, Tapana (Sumi- 
chrast®); Guatemaua (Skinner 1); San Satvapor, Conchagua (0. S.); Nicaragua, 
Corinto (Baxter), San Juan del Sur (0. S.) ; Costa Rica, Tempate, Bebedero (Arcé). 
For several years this species was only known to us from the single specimen in Mr. 
Sclater’s collection®, which once formed part of one of the large series of bird-skins 
