Largemouth Bass
Top clue: Upper jaw extends past the rear edge of the eye
Common markings: Dark lateral band, Large mouth
Comparison guide
Largemouth Bass vs Smallmouth Bass: Fast ID Guide
These two bass are frequently confused by beginners. Mouth position and body pattern are the fastest checks before you even measure fish size.
Smallmouth Bass
Top clue: Upper jaw ends near middle of eye
Common markings: Bronze color, Vertical bars
| Trait | Largemouth Bass | Smallmouth Bass |
|---|---|---|
| Identification traits | Upper jaw extends past the rear edge of the eye; Dark horizontal stripe along side; Body green to olive with lighter belly | Upper jaw ends near middle of eye; Vertical bars instead of a bold lateral stripe; Bronze to brown body tones |
| Mouth / body / tail | Large mouth; Deep-bodied; Rounded to slightly forked | Small mouth; Torpedo-shaped; Slight fork |
| Typical habitat | Warm lakes, ponds, weedy coves, and slow rivers with cover | Clear rocky lakes and rivers with current |
| Typical size | 12-20 in | 10-18 in |
| Range | Widespread in Connecticut and across the Northeast | Rivers and lakes throughout the Northeast |
| Key markings | Dark lateral band, Large mouth | Bronze color, Vertical bars |
Regulation reminder
This guide is informational only. Regulations, seasons, limits, and advisories change. Always verify current rules with official agencies before keeping fish.