a transmission cover member sealingly engaging at least a portion of the lateral wall of {HEAD ~ said case main body} to cover {TAIL ~ the recessed portion} thereof in a fluid tight manner; and 
to cover
a transmission cover member sealingly engaging at least a portion of the lateral wall of { HEAD ~ said case main body } to cover { TAIL ~ the recessed portion } thereof in a fluid tight manner ; and
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH