Thus, the marsh is torn asunder and divided into many rivers.
①The Aeas, pure but of little stream, flows westwards to the Ionian sea; and ②the father (=Inachus) of snatched Isis (=Io) slides with no stronger stream; and ③the almost-son-in-law (=Achelous) of you, Oeneus, slits up the Echinad islands with thick stream; and ④the Euhenos, stained with the blood of Nessus, runs through Meleager's Calydon. ⑤The Spercheos strikes the Maliac gulf with swift stream; and ⑥the Amphrysos irrigates with pure stream the pasture of Apollo the shepherd.
DBC 6.374, 369-73 (sic in Housman and al.)
⑦The Asopos, ⑧the Phoenix, and ⑨the Melas accepts their course; 
and ⑩the Anauros, which sighs out neither humid vapours nor dew-drenched air nor soft wind,
and ⑪whatever river, unknown per se, gives its waters to the Peneus sea: (namely) ⑪the Apidanos, whose stream is snatched, and ⑪the Enipeus, which is never swift unless mixed. 
[⑫the Titaresos... ⑬the Peneus... ⑭the Stygian pool...]
There are also many streams and fearful rivers in this land. Of them is the stream ①Aeas and the stream ★Oeneus (Inaich), and the river ☆Achelous (Achiloin) on which are the Echinades islands, ❺the Malian river, and the river ⑤Spercheus, the stream ⑥Amphrysus, and the ⑩river Anaurus, the river ⑪Apidanus and the river ⑪Enipeus, the stream ⑦Asopus and the stream ⑧Phoenix, the stream ⑨Melas, the stream ⑫Titaresos, and the river ⑬Peneus. The shanachies of Thessaly relate that the source of that stream wells out of the river ⑭Styx in hell.
RESEARCH (1) : ②＝★ / ③＝☆
Though Stokes is correct in rendering ③ into ☆Achelous (cf. Ov. 7.1ff for the myth)...
he poorly mistakes for "Oeneus" the ★Inaich, which actually stands for ②"Inachus".
For the myth for ②, see Ov. 1.588-750 and Tesoriero (2000) ad loc.
⇒ How come did the ADP redactor realise these periphrases??
(... and why only ④ was cut, but ⑤ was doubled????)
Any SCHOLIA clarifies both "Inachus" and "Achelous" !!!!
Stokes' Translation is so careless!!
RESEARCH (2): line 374
Tesoriero (2000) geographically classifies the rivers into 3 groups:
(A) ①-④: westwards into the Adriatic
(B) ⑤-⑩: flowing through south-western Thessaly into the Maliac and Pagasitic gulfs
(C) ⑪-⑭: flowing through north-eastern Thessaly into Tempe
⑦-⑨ on 374 are doubtless in the (B) group but MSS include them in (C).
While Housman transposed it, Samse (1942) and Masters (1992) are interested in deletion of the line.
⇒ Tesoriero defends Housman from 2 points:
(i) L's dependence on Herod. 7.198-200
(ii) L's allusion to the battle of Thermopylae, reminding readers of Xerxes' hubris and megalomania
↓ ↓ ↓
Housman & Tesoriero may be right in transposing the line...
BUT the MS used by the Irish redactor must have had 374 between 373 & 375!!!!
⇒ but since ANY extant MSS of DBC has this order, there's nothing new to show...