diff --git a/Release-notes.md b/Release-notes.md
index 836f919..143576a 100644
--- a/Release-notes.md
+++ b/Release-notes.md
@@ -4,6 +4,15 @@
 
 ### Bug fixes
 
+- In `obipairing` correct the misspelling of the `obiparing_*` tags where the `i`
+  was missing to `obipairing_`.  
+
+- In `obigrep` the **-C** option that excludes sequences too abundant was not 
+  functional.
+
+- In `obitaxonomy` the **-l** option that lists all the taxonomic rank defined by
+  a taxonomy was not functional
+
 - The file type guesser was not using enough data to be able to correctly detect
   file format when sequences were too long in fastq and fasta or when lines were
   to long in CSV files. That's now corrected
diff --git a/cmd/obitools/obitaxonomy/main.go b/cmd/obitools/obitaxonomy/main.go
index ae9a3f8..8e1bc7a 100644
--- a/cmd/obitools/obitaxonomy/main.go
+++ b/cmd/obitools/obitaxonomy/main.go
@@ -4,9 +4,11 @@ import (
 	"os"
 
 	"git.metabarcoding.org/obitools/obitools4/obitools4/pkg/obidefault"
+	"git.metabarcoding.org/obitools/obitools4/obitools4/pkg/obiitercsv"
 	"git.metabarcoding.org/obitools/obitools4/obitools4/pkg/obioptions"
 	"git.metabarcoding.org/obitools/obitools4/obitools4/pkg/obitax"
 	"git.metabarcoding.org/obitools/obitools4/obitools4/pkg/obitools/obiconvert"
+	"git.metabarcoding.org/obitools/obitools4/obitools4/pkg/obitools/obicsv"
 	"git.metabarcoding.org/obitools/obitools4/obitools4/pkg/obitools/obitaxonomy"
 	"git.metabarcoding.org/obitools/obitools4/obitools4/pkg/obiutils"
 
@@ -37,13 +39,25 @@ func main() {
 	}
 
 	switch {
-	case obitaxonomy.CLIDownloadNCBI():
-		err := obitaxonomy.CLIDownloadNCBITaxdump()
-		if err != nil {
-			log.Errorf("Cannot download NCBI taxonomy: %s", err.Error())
-			os.Exit(1)
-		}
+	case obitaxonomy.CLIAskForRankList():
+		newIter := obiitercsv.NewICSVRecord()
+		newIter.Add(1)
+		newIter.AppendField("rank")
+		go func() {
+			ranks := obitax.DefaultTaxonomy().RankList()
+			data := make([]obiitercsv.CSVRecord, len(ranks))
 
+			for i, rank := range ranks {
+				record := make(obiitercsv.CSVRecord)
+				record["rank"] = rank
+				data[i] = record
+			}
+			newIter.Push(obiitercsv.MakeCSVRecordBatch(obitax.DefaultTaxonomy().Name(), 0, data))
+			newIter.Close()
+			newIter.Done()
+		}()
+		obicsv.CLICSVWriter(newIter, true)
+		obiutils.WaitForLastPipe()
 		os.Exit(0)
 
 	case obitaxonomy.CLIExtractTaxonomy():
diff --git a/pkg/obioptions/version.go b/pkg/obioptions/version.go
index 2bc46de..9a89121 100644
--- a/pkg/obioptions/version.go
+++ b/pkg/obioptions/version.go
@@ -8,7 +8,7 @@ import (
 // corresponds to the last commit, and not the one when the file will be
 // commited
 
-var _Commit = "2d52322"
+var _Commit = "03b5ce9"
 var _Version = "Release 4.4.0"
 
 // Version returns the version of the obitools package.
diff --git a/pkg/obitools/obigrep/options.go b/pkg/obitools/obigrep/options.go
index 1b06e5a..a2771c8 100644
--- a/pkg/obitools/obigrep/options.go
+++ b/pkg/obitools/obigrep/options.go
@@ -223,7 +223,7 @@ func CLISequenceCountPredicate() obiseq.SequencePredicate {
 		return p
 	}
 
-	if _MaximumLength != int(2e9) {
+	if _MaximumCount != int(2e9) {
 		return obiseq.IsLessAbundantOrEqualTo(_MaximumCount)
 	}
 
diff --git a/pkg/obitools/obipairing/pairing.go b/pkg/obitools/obipairing/pairing.go
index 991a635..7291520 100644
--- a/pkg/obitools/obipairing/pairing.go
+++ b/pkg/obitools/obipairing/pairing.go
@@ -137,9 +137,9 @@ func AssemblePESequences(seqA, seqB *obiseq.BioSequence,
 	annot := cons.Annotations()
 
 	if fastAlign {
-		annot["paring_fast_count"] = fastcount
-		annot["paring_fast_score"] = math.Round(fastscore*1000) / 1000
-		annot["paring_fast_overlap"] = over
+		annot["pairing_fast_count"] = fastcount
+		annot["pairing_fast_score"] = math.Round(fastscore*1000) / 1000
+		annot["pairing_fast_overlap"] = over
 	}
 
 	if aliLength >= minOverlap && identity >= minIdentity {
diff --git a/pkg/obitools/obitaxonomy/options.go b/pkg/obitools/obitaxonomy/options.go
index b7a555b..0f9d643 100644
--- a/pkg/obitools/obitaxonomy/options.go
+++ b/pkg/obitools/obitaxonomy/options.go
@@ -165,3 +165,7 @@ func CLIExtractTaxonomy() bool {
 func CLIAsNewick() bool {
 	return __newick__
 }
+
+func CLIAskForRankList() bool {
+	return __rank_list__
+}